256221960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:192

約数の個数: 256

約数和(自身を含む): 867801600

約数和(自身を除く): 611579640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 29, 30, 34, 40, 51, 58, 60, 61, 68, 71, 85, 87, 102, 116, 120, 122, 136, 142, 145, 170, 174, 183, 204, 213, 232, 244, 255, 284, 290, 305, 340, 348, 355, 366, 408, 426, 435, 488, 493, 510, 568, 580, 610, 680, 696, 710, 732, 852, 870, 915, 986, 1020, 1037, 1065, 1160, 1207, 1220, 1420, 1464, 1479, 1704, 1740, 1769, 1830, 1972, 2040, 2059, 2074, 2130, 2414, 2440, 2465, 2840, 2958, 3111, 3480, 3538, 3621, 3660, 3944, 4118, 4148, 4260, 4331, 4828, 4930, 5185, 5307, 5916, 6035, 6177, 6222, 7076, 7242, 7320, 7395, 8236, 8296, 8520, 8662, 8845, 9656, 9860, 10295, 10370, 10614, 11832, 12070, 12354, 12444, 12993, 14152, 14484, 14790, 15555, 16472, 17324, 17690, 18105, 19720, 20590, 20740, 21228, 21655, 24140, 24708, 24888, 25986, 26535, 28968, 29580, 30073, 30885, 31110, 34648, 35003, 35380, 36210, 41180, 41480, 42456, 43310, 48280, 49416, 51972, 53070, 59160, 60146, 61770, 62220, 64965, 70006, 70760, 72420, 73627, 82360, 86620, 90219, 103944, 105009, 106140, 120292, 123540, 124440, 125599, 129930, 140012, 144840, 147254, 150365, 173240, 175015, 180438, 210018, 212280, 220881, 240584, 247080, 251198, 259860, 280024, 294508, 300730, 350030, 360876, 368135, 376797, 420036, 441762, 451095, 502396, 519720, 525045, 589016, 601460, 627995, 700060, 721752, 736270, 753594, 840072, 883524, 902190, 1004792, 1050090, 1104405, 1202920, 1255990, 1400120, 1472540, 1507188, 1767048, 1804380, 1883985, 2100180, 2135183, 2208810, 2511980, 2945080, 3014376, 3608760, 3767970, 4200360, 4270366, 4417620, 5023960, 6405549, 7535940, 8540732, 8835240, 10675915, 12811098, 15071880, 17081464, 21351830, 25622196, 32027745, 42703660, 51244392, 64055490, 85407320, 128110980, 256221960]

約数ペア:

[(1, 256221960), (2, 128110980), (3, 85407320), (4, 64055490), (5, 51244392), (6, 42703660), (8, 32027745), (10, 25622196), (12, 21351830), (15, 17081464), (17, 15071880), (20, 12811098), (24, 10675915), (29, 8835240), (30, 8540732), (34, 7535940), (40, 6405549), (51, 5023960), (58, 4417620), (60, 4270366), (61, 4200360), (68, 3767970), (71, 3608760), (85, 3014376), (87, 2945080), (102, 2511980), (116, 2208810), (120, 2135183), (122, 2100180), (136, 1883985), (142, 1804380), (145, 1767048), (170, 1507188), (174, 1472540), (183, 1400120), (204, 1255990), (213, 1202920), (232, 1104405), (244, 1050090), (255, 1004792), (284, 902190), (290, 883524), (305, 840072), (340, 753594), (348, 736270), (355, 721752), (366, 700060), (408, 627995), (426, 601460), (435, 589016), (488, 525045), (493, 519720), (510, 502396), (568, 451095), (580, 441762), (610, 420036), (680, 376797), (696, 368135), (710, 360876), (732, 350030), (852, 300730), (870, 294508), (915, 280024), (986, 259860), (1020, 251198), (1037, 247080), (1065, 240584), (1160, 220881), (1207, 212280), (1220, 210018), (1420, 180438), (1464, 175015), (1479, 173240), (1704, 150365), (1740, 147254), (1769, 144840), (1830, 140012), (1972, 129930), (2040, 125599), (2059, 124440), (2074, 123540), (2130, 120292), (2414, 106140), (2440, 105009), (2465, 103944), (2840, 90219), (2958, 86620), (3111, 82360), (3480, 73627), (3538, 72420), (3621, 70760), (3660, 70006), (3944, 64965), (4118, 62220), (4148, 61770), (4260, 60146), (4331, 59160), (4828, 53070), (4930, 51972), (5185, 49416), (5307, 48280), (5916, 43310), (6035, 42456), (6177, 41480), (6222, 41180), (7076, 36210), (7242, 35380), (7320, 35003), (7395, 34648), (8236, 31110), (8296, 30885), (8520, 30073), (8662, 29580), (8845, 28968), (9656, 26535), (9860, 25986), (10295, 24888), (10370, 24708), (10614, 24140), (11832, 21655), (12070, 21228), (12354, 20740), (12444, 20590), (12993, 19720), (14152, 18105), (14484, 17690), (14790, 17324), (15555, 16472)]