31873140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{257}}^1$

素因数の和:338

約数の個数: 144

約数和(自身を含む): 106496208

約数和(自身を除く): 74623068

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 53, 60, 65, 78, 90, 106, 117, 130, 156, 159, 180, 195, 212, 234, 257, 260, 265, 318, 390, 468, 477, 514, 530, 585, 636, 689, 771, 780, 795, 954, 1028, 1060, 1170, 1285, 1378, 1542, 1590, 1908, 2067, 2313, 2340, 2385, 2570, 2756, 3084, 3180, 3341, 3445, 3855, 4134, 4626, 4770, 5140, 6201, 6682, 6890, 7710, 8268, 9252, 9540, 10023, 10335, 11565, 12402, 13364, 13621, 13780, 15420, 16705, 20046, 20670, 23130, 24804, 27242, 30069, 31005, 33410, 40092, 40863, 41340, 46260, 50115, 54484, 60138, 62010, 66820, 68105, 81726, 100230, 120276, 122589, 124020, 136210, 150345, 163452, 177073, 200460, 204315, 245178, 272420, 300690, 354146, 408630, 490356, 531219, 601380, 612945, 708292, 817260, 885365, 1062438, 1225890, 1593657, 1770730, 2124876, 2451780, 2656095, 3187314, 3541460, 5312190, 6374628, 7968285, 10624380, 15936570, 31873140]

約数ペア:

[(1, 31873140), (2, 15936570), (3, 10624380), (4, 7968285), (5, 6374628), (6, 5312190), (9, 3541460), (10, 3187314), (12, 2656095), (13, 2451780), (15, 2124876), (18, 1770730), (20, 1593657), (26, 1225890), (30, 1062438), (36, 885365), (39, 817260), (45, 708292), (52, 612945), (53, 601380), (60, 531219), (65, 490356), (78, 408630), (90, 354146), (106, 300690), (117, 272420), (130, 245178), (156, 204315), (159, 200460), (180, 177073), (195, 163452), (212, 150345), (234, 136210), (257, 124020), (260, 122589), (265, 120276), (318, 100230), (390, 81726), (468, 68105), (477, 66820), (514, 62010), (530, 60138), (585, 54484), (636, 50115), (689, 46260), (771, 41340), (780, 40863), (795, 40092), (954, 33410), (1028, 31005), (1060, 30069), (1170, 27242), (1285, 24804), (1378, 23130), (1542, 20670), (1590, 20046), (1908, 16705), (2067, 15420), (2313, 13780), (2340, 13621), (2385, 13364), (2570, 12402), (2756, 11565), (3084, 10335), (3180, 10023), (3341, 9540), (3445, 9252), (3855, 8268), (4134, 7710), (4626, 6890), (4770, 6682), (5140, 6201)]