31319920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{173}}^1$

素因数の和:290

約数の個数: 80

約数和(自身を含む): 76637952

約数和(自身を除く): 45318032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 73, 80, 124, 146, 155, 173, 248, 292, 310, 346, 365, 496, 584, 620, 692, 730, 865, 1168, 1240, 1384, 1460, 1730, 2263, 2480, 2768, 2920, 3460, 4526, 5363, 5840, 6920, 9052, 10726, 11315, 12629, 13840, 18104, 21452, 22630, 25258, 26815, 36208, 42904, 45260, 50516, 53630, 63145, 85808, 90520, 101032, 107260, 126290, 181040, 202064, 214520, 252580, 391499, 429040, 505160, 782998, 1010320, 1565996, 1957495, 3131992, 3914990, 6263984, 7829980, 15659960, 31319920]

約数ペア:

[(1, 31319920), (2, 15659960), (4, 7829980), (5, 6263984), (8, 3914990), (10, 3131992), (16, 1957495), (20, 1565996), (31, 1010320), (40, 782998), (62, 505160), (73, 429040), (80, 391499), (124, 252580), (146, 214520), (155, 202064), (173, 181040), (248, 126290), (292, 107260), (310, 101032), (346, 90520), (365, 85808), (496, 63145), (584, 53630), (620, 50516), (692, 45260), (730, 42904), (865, 36208), (1168, 26815), (1240, 25258), (1384, 22630), (1460, 21452), (1730, 18104), (2263, 13840), (2480, 12629), (2768, 11315), (2920, 10726), (3460, 9052), (4526, 6920), (5363, 5840)]