85918820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:237

約数の個数: 96

約数和(自身を含む): 203212800

約数和(自身を除く): 117293980

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 47, 52, 65, 79, 89, 94, 130, 158, 178, 188, 235, 260, 316, 356, 395, 445, 470, 611, 790, 890, 940, 1027, 1157, 1222, 1580, 1780, 2054, 2314, 2444, 3055, 3713, 4108, 4183, 4628, 5135, 5785, 6110, 7031, 7426, 8366, 10270, 11570, 12220, 14062, 14852, 16732, 18565, 20540, 20915, 23140, 28124, 35155, 37130, 41830, 48269, 54379, 70310, 74260, 83660, 91403, 96538, 108758, 140620, 182806, 193076, 217516, 241345, 271895, 330457, 365612, 457015, 482690, 543790, 660914, 914030, 965380, 1087580, 1321828, 1652285, 1828060, 3304570, 4295941, 6609140, 8591882, 17183764, 21479705, 42959410, 85918820]

約数ペア:

[(1, 85918820), (2, 42959410), (4, 21479705), (5, 17183764), (10, 8591882), (13, 6609140), (20, 4295941), (26, 3304570), (47, 1828060), (52, 1652285), (65, 1321828), (79, 1087580), (89, 965380), (94, 914030), (130, 660914), (158, 543790), (178, 482690), (188, 457015), (235, 365612), (260, 330457), (316, 271895), (356, 241345), (395, 217516), (445, 193076), (470, 182806), (611, 140620), (790, 108758), (890, 96538), (940, 91403), (1027, 83660), (1157, 74260), (1222, 70310), (1580, 54379), (1780, 48269), (2054, 41830), (2314, 37130), (2444, 35155), (3055, 28124), (3713, 23140), (4108, 20915), (4183, 20540), (4628, 18565), (5135, 16732), (5785, 14852), (6110, 14062), (7031, 12220), (7426, 11570), (8366, 10270)]