638463240

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{24979}}^1$

素因数の和:25067

約数の個数: 96

約数和(自身を含む): 2104315200

約数和(自身を除く): 1465851960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 71, 72, 90, 120, 142, 180, 213, 284, 355, 360, 426, 568, 639, 710, 852, 1065, 1278, 1420, 1704, 2130, 2556, 2840, 3195, 4260, 5112, 6390, 8520, 12780, 24979, 25560, 49958, 74937, 99916, 124895, 149874, 199832, 224811, 249790, 299748, 374685, 449622, 499580, 599496, 749370, 899244, 999160, 1124055, 1498740, 1773509, 1798488, 2248110, 2997480, 3547018, 4496220, 5320527, 7094036, 8867545, 8992440, 10641054, 14188072, 15961581, 17735090, 21282108, 26602635, 31923162, 35470180, 42564216, 53205270, 63846324, 70940360, 79807905, 106410540, 127692648, 159615810, 212821080, 319231620, 638463240]

約数ペア:

[(1, 638463240), (2, 319231620), (3, 212821080), (4, 159615810), (5, 127692648), (6, 106410540), (8, 79807905), (9, 70940360), (10, 63846324), (12, 53205270), (15, 42564216), (18, 35470180), (20, 31923162), (24, 26602635), (30, 21282108), (36, 17735090), (40, 15961581), (45, 14188072), (60, 10641054), (71, 8992440), (72, 8867545), (90, 7094036), (120, 5320527), (142, 4496220), (180, 3547018), (213, 2997480), (284, 2248110), (355, 1798488), (360, 1773509), (426, 1498740), (568, 1124055), (639, 999160), (710, 899244), (852, 749370), (1065, 599496), (1278, 499580), (1420, 449622), (1704, 374685), (2130, 299748), (2556, 249790), (2840, 224811), (3195, 199832), (4260, 149874), (5112, 124895), (6390, 99916), (8520, 74937), (12780, 49958), (24979, 25560)]