31983940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{653}}^1$

素因数の和:772

約数の個数: 48

約数和(自身を含む): 70318080

約数和(自身を除く): 38334140

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 79, 124, 155, 158, 310, 316, 395, 620, 653, 790, 1306, 1580, 2449, 2612, 3265, 4898, 6530, 9796, 12245, 13060, 20243, 24490, 40486, 48980, 51587, 80972, 101215, 103174, 202430, 206348, 257935, 404860, 515870, 1031740, 1599197, 3198394, 6396788, 7995985, 15991970, 31983940]

約数ペア:

[(1, 31983940), (2, 15991970), (4, 7995985), (5, 6396788), (10, 3198394), (20, 1599197), (31, 1031740), (62, 515870), (79, 404860), (124, 257935), (155, 206348), (158, 202430), (310, 103174), (316, 101215), (395, 80972), (620, 51587), (653, 48980), (790, 40486), (1306, 24490), (1580, 20243), (2449, 13060), (2612, 12245), (3265, 9796), (4898, 6530)]