81319440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{4289}}^1$

素因数の和:4384

約数の個数: 80

約数和(自身を含む): 255340800

約数和(自身を除く): 174021360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 79, 80, 120, 158, 237, 240, 316, 395, 474, 632, 790, 948, 1185, 1264, 1580, 1896, 2370, 3160, 3792, 4289, 4740, 6320, 8578, 9480, 12867, 17156, 18960, 21445, 25734, 34312, 42890, 51468, 64335, 68624, 85780, 102936, 128670, 171560, 205872, 257340, 338831, 343120, 514680, 677662, 1016493, 1029360, 1355324, 1694155, 2032986, 2710648, 3388310, 4065972, 5082465, 5421296, 6776620, 8131944, 10164930, 13553240, 16263888, 20329860, 27106480, 40659720, 81319440]

約数ペア:

[(1, 81319440), (2, 40659720), (3, 27106480), (4, 20329860), (5, 16263888), (6, 13553240), (8, 10164930), (10, 8131944), (12, 6776620), (15, 5421296), (16, 5082465), (20, 4065972), (24, 3388310), (30, 2710648), (40, 2032986), (48, 1694155), (60, 1355324), (79, 1029360), (80, 1016493), (120, 677662), (158, 514680), (237, 343120), (240, 338831), (316, 257340), (395, 205872), (474, 171560), (632, 128670), (790, 102936), (948, 85780), (1185, 68624), (1264, 64335), (1580, 51468), (1896, 42890), (2370, 34312), (3160, 25734), (3792, 21445), (4289, 18960), (4740, 17156), (6320, 12867), (8578, 9480)]