78259280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{787}}^1$

素因数の和:924

約数の個数: 80

約数和(自身を含む): 200505024

約数和(自身を除く): 122245744

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 113, 176, 220, 226, 440, 452, 565, 787, 880, 904, 1130, 1243, 1574, 1808, 2260, 2486, 3148, 3935, 4520, 4972, 6215, 6296, 7870, 8657, 9040, 9944, 12430, 12592, 15740, 17314, 19888, 24860, 31480, 34628, 43285, 49720, 62960, 69256, 86570, 88931, 99440, 138512, 173140, 177862, 346280, 355724, 444655, 692560, 711448, 889310, 978241, 1422896, 1778620, 1956482, 3557240, 3912964, 4891205, 7114480, 7825928, 9782410, 15651856, 19564820, 39129640, 78259280]

約数ペア:

[(1, 78259280), (2, 39129640), (4, 19564820), (5, 15651856), (8, 9782410), (10, 7825928), (11, 7114480), (16, 4891205), (20, 3912964), (22, 3557240), (40, 1956482), (44, 1778620), (55, 1422896), (80, 978241), (88, 889310), (110, 711448), (113, 692560), (176, 444655), (220, 355724), (226, 346280), (440, 177862), (452, 173140), (565, 138512), (787, 99440), (880, 88931), (904, 86570), (1130, 69256), (1243, 62960), (1574, 49720), (1808, 43285), (2260, 34628), (2486, 31480), (3148, 24860), (3935, 19888), (4520, 17314), (4972, 15740), (6215, 12592), (6296, 12430), (7870, 9944), (8657, 9040)]