28409040

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{211}}^1$

素因数の和:258

約数の個数: 240

約数和(自身を含む): 110725056

約数和(自身を除く): 82316016

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 17, 18, 20, 22, 24, 30, 33, 34, 36, 40, 44, 45, 48, 51, 55, 60, 66, 68, 72, 80, 85, 88, 90, 99, 102, 110, 120, 132, 136, 144, 153, 165, 170, 176, 180, 187, 198, 204, 211, 220, 240, 255, 264, 272, 306, 330, 340, 360, 374, 396, 408, 422, 440, 495, 510, 528, 561, 612, 633, 660, 680, 720, 748, 765, 792, 816, 844, 880, 935, 990, 1020, 1055, 1122, 1224, 1266, 1320, 1360, 1496, 1530, 1584, 1683, 1688, 1870, 1899, 1980, 2040, 2110, 2244, 2321, 2448, 2532, 2640, 2805, 2992, 3060, 3165, 3366, 3376, 3587, 3740, 3798, 3960, 4080, 4220, 4488, 4642, 5064, 5610, 6120, 6330, 6732, 6963, 7174, 7480, 7596, 7920, 8415, 8440, 8976, 9284, 9495, 10128, 10761, 11220, 11605, 12240, 12660, 13464, 13926, 14348, 14960, 15192, 16830, 16880, 17935, 18568, 18990, 20889, 21522, 22440, 23210, 25320, 26928, 27852, 28696, 30384, 32283, 33660, 34815, 35870, 37136, 37980, 39457, 41778, 43044, 44880, 46420, 50640, 53805, 55704, 57392, 64566, 67320, 69630, 71740, 75960, 78914, 83556, 86088, 92840, 104445, 107610, 111408, 118371, 129132, 134640, 139260, 143480, 151920, 157828, 161415, 167112, 172176, 185680, 197285, 208890, 215220, 236742, 258264, 278520, 286960, 315656, 322830, 334224, 355113, 394570, 417780, 430440, 473484, 516528, 557040, 591855, 631312, 645660, 710226, 789140, 835560, 860880, 946968, 1183710, 1291320, 1420452, 1578280, 1671120, 1775565, 1893936, 2367420, 2582640, 2840904, 3156560, 3551130, 4734840, 5681808, 7102260, 9469680, 14204520, 28409040]

約数ペア:

[(1, 28409040), (2, 14204520), (3, 9469680), (4, 7102260), (5, 5681808), (6, 4734840), (8, 3551130), (9, 3156560), (10, 2840904), (11, 2582640), (12, 2367420), (15, 1893936), (16, 1775565), (17, 1671120), (18, 1578280), (20, 1420452), (22, 1291320), (24, 1183710), (30, 946968), (33, 860880), (34, 835560), (36, 789140), (40, 710226), (44, 645660), (45, 631312), (48, 591855), (51, 557040), (55, 516528), (60, 473484), (66, 430440), (68, 417780), (72, 394570), (80, 355113), (85, 334224), (88, 322830), (90, 315656), (99, 286960), (102, 278520), (110, 258264), (120, 236742), (132, 215220), (136, 208890), (144, 197285), (153, 185680), (165, 172176), (170, 167112), (176, 161415), (180, 157828), (187, 151920), (198, 143480), (204, 139260), (211, 134640), (220, 129132), (240, 118371), (255, 111408), (264, 107610), (272, 104445), (306, 92840), (330, 86088), (340, 83556), (360, 78914), (374, 75960), (396, 71740), (408, 69630), (422, 67320), (440, 64566), (495, 57392), (510, 55704), (528, 53805), (561, 50640), (612, 46420), (633, 44880), (660, 43044), (680, 41778), (720, 39457), (748, 37980), (765, 37136), (792, 35870), (816, 34815), (844, 33660), (880, 32283), (935, 30384), (990, 28696), (1020, 27852), (1055, 26928), (1122, 25320), (1224, 23210), (1266, 22440), (1320, 21522), (1360, 20889), (1496, 18990), (1530, 18568), (1584, 17935), (1683, 16880), (1688, 16830), (1870, 15192), (1899, 14960), (1980, 14348), (2040, 13926), (2110, 13464), (2244, 12660), (2321, 12240), (2448, 11605), (2532, 11220), (2640, 10761), (2805, 10128), (2992, 9495), (3060, 9284), (3165, 8976), (3366, 8440), (3376, 8415), (3587, 7920), (3740, 7596), (3798, 7480), (3960, 7174), (4080, 6963), (4220, 6732), (4488, 6330), (4642, 6120), (5064, 5610)]