81177840

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3637}}^1$

素因数の和:3687

約数の個数: 120

約数和(自身を含む): 281493888

約数和(自身を除く): 200316048

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 36, 40, 45, 48, 60, 62, 72, 80, 90, 93, 120, 124, 144, 155, 180, 186, 240, 248, 279, 310, 360, 372, 465, 496, 558, 620, 720, 744, 930, 1116, 1240, 1395, 1488, 1860, 2232, 2480, 2790, 3637, 3720, 4464, 5580, 7274, 7440, 10911, 11160, 14548, 18185, 21822, 22320, 29096, 32733, 36370, 43644, 54555, 58192, 65466, 72740, 87288, 109110, 112747, 130932, 145480, 163665, 174576, 218220, 225494, 261864, 290960, 327330, 338241, 436440, 450988, 523728, 563735, 654660, 676482, 872880, 901976, 1014723, 1127470, 1309320, 1352964, 1691205, 1803952, 2029446, 2254940, 2618640, 2705928, 3382410, 4058892, 4509880, 5073615, 5411856, 6764820, 8117784, 9019760, 10147230, 13529640, 16235568, 20294460, 27059280, 40588920, 81177840]

約数ペア:

[(1, 81177840), (2, 40588920), (3, 27059280), (4, 20294460), (5, 16235568), (6, 13529640), (8, 10147230), (9, 9019760), (10, 8117784), (12, 6764820), (15, 5411856), (16, 5073615), (18, 4509880), (20, 4058892), (24, 3382410), (30, 2705928), (31, 2618640), (36, 2254940), (40, 2029446), (45, 1803952), (48, 1691205), (60, 1352964), (62, 1309320), (72, 1127470), (80, 1014723), (90, 901976), (93, 872880), (120, 676482), (124, 654660), (144, 563735), (155, 523728), (180, 450988), (186, 436440), (240, 338241), (248, 327330), (279, 290960), (310, 261864), (360, 225494), (372, 218220), (465, 174576), (496, 163665), (558, 145480), (620, 130932), (720, 112747), (744, 109110), (930, 87288), (1116, 72740), (1240, 65466), (1395, 58192), (1488, 54555), (1860, 43644), (2232, 36370), (2480, 32733), (2790, 29096), (3637, 22320), (3720, 21822), (4464, 18185), (5580, 14548), (7274, 11160), (7440, 10911)]