129668920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{2797}}^1$

素因数の和:2888

約数の個数: 64

約数和(自身を含む): 312256800

約数和(自身を除く): 182587880

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 61, 76, 95, 122, 152, 190, 244, 305, 380, 488, 610, 760, 1159, 1220, 2318, 2440, 2797, 4636, 5594, 5795, 9272, 11188, 11590, 13985, 22376, 23180, 27970, 46360, 53143, 55940, 106286, 111880, 170617, 212572, 265715, 341234, 425144, 531430, 682468, 853085, 1062860, 1364936, 1706170, 2125720, 3241723, 3412340, 6483446, 6824680, 12966892, 16208615, 25933784, 32417230, 64834460, 129668920]

約数ペア:

[(1, 129668920), (2, 64834460), (4, 32417230), (5, 25933784), (8, 16208615), (10, 12966892), (19, 6824680), (20, 6483446), (38, 3412340), (40, 3241723), (61, 2125720), (76, 1706170), (95, 1364936), (122, 1062860), (152, 853085), (190, 682468), (244, 531430), (305, 425144), (380, 341234), (488, 265715), (610, 212572), (760, 170617), (1159, 111880), (1220, 106286), (2318, 55940), (2440, 53143), (2797, 46360), (4636, 27970), (5594, 23180), (5795, 22376), (9272, 13985), (11188, 11590)]