257978520

素因数分解:

$2^3\times 3^8\times 5^1\times {\mathrm{983}}^1$

素因数の和:1018

約数の個数: 144

約数和(自身を含む): 871518960

約数和(自身を除く): 613540440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 243, 270, 324, 360, 405, 486, 540, 648, 729, 810, 972, 983, 1080, 1215, 1458, 1620, 1944, 1966, 2187, 2430, 2916, 2949, 3240, 3645, 3932, 4374, 4860, 4915, 5832, 5898, 6561, 7290, 7864, 8748, 8847, 9720, 9830, 10935, 11796, 13122, 14580, 14745, 17496, 17694, 19660, 21870, 23592, 26244, 26541, 29160, 29490, 32805, 35388, 39320, 43740, 44235, 52488, 53082, 58980, 65610, 70776, 79623, 87480, 88470, 106164, 117960, 131220, 132705, 159246, 176940, 212328, 238869, 262440, 265410, 318492, 353880, 398115, 477738, 530820, 636984, 716607, 796230, 955476, 1061640, 1194345, 1433214, 1592460, 1910952, 2149821, 2388690, 2866428, 3184920, 3583035, 4299642, 4777380, 5732856, 6449463, 7166070, 8599284, 9554760, 10749105, 12898926, 14332140, 17198568, 21498210, 25797852, 28664280, 32247315, 42996420, 51595704, 64494630, 85992840, 128989260, 257978520]

約数ペア:

[(1, 257978520), (2, 128989260), (3, 85992840), (4, 64494630), (5, 51595704), (6, 42996420), (8, 32247315), (9, 28664280), (10, 25797852), (12, 21498210), (15, 17198568), (18, 14332140), (20, 12898926), (24, 10749105), (27, 9554760), (30, 8599284), (36, 7166070), (40, 6449463), (45, 5732856), (54, 4777380), (60, 4299642), (72, 3583035), (81, 3184920), (90, 2866428), (108, 2388690), (120, 2149821), (135, 1910952), (162, 1592460), (180, 1433214), (216, 1194345), (243, 1061640), (270, 955476), (324, 796230), (360, 716607), (405, 636984), (486, 530820), (540, 477738), (648, 398115), (729, 353880), (810, 318492), (972, 265410), (983, 262440), (1080, 238869), (1215, 212328), (1458, 176940), (1620, 159246), (1944, 132705), (1966, 131220), (2187, 117960), (2430, 106164), (2916, 88470), (2949, 87480), (3240, 79623), (3645, 70776), (3932, 65610), (4374, 58980), (4860, 53082), (4915, 52488), (5832, 44235), (5898, 43740), (6561, 39320), (7290, 35388), (7864, 32805), (8748, 29490), (8847, 29160), (9720, 26541), (9830, 26244), (10935, 23592), (11796, 21870), (13122, 19660), (14580, 17694), (14745, 17496)]