85280380

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{263}}^1\times {\mathrm{523}}^1$

素因数の和:826

約数の個数: 48

約数和(自身を含む): 185923584

約数和(自身を除く): 100643204

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 263, 310, 523, 526, 620, 1046, 1052, 1315, 2092, 2615, 2630, 5230, 5260, 8153, 10460, 16213, 16306, 32426, 32612, 40765, 64852, 81065, 81530, 137549, 162130, 163060, 275098, 324260, 550196, 687745, 1375490, 2750980, 4264019, 8528038, 17056076, 21320095, 42640190, 85280380]

約数ペア:

[(1, 85280380), (2, 42640190), (4, 21320095), (5, 17056076), (10, 8528038), (20, 4264019), (31, 2750980), (62, 1375490), (124, 687745), (155, 550196), (263, 324260), (310, 275098), (523, 163060), (526, 162130), (620, 137549), (1046, 81530), (1052, 81065), (1315, 64852), (2092, 40765), (2615, 32612), (2630, 32426), (5230, 16306), (5260, 16213), (8153, 10460)]