66878860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{59}}^1\times {\mathrm{157}}^1$

素因数の和:263

約数の個数: 72

約数和(自身を含む): 151698960

約数和(自身を除く): 84820100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 59, 76, 95, 118, 157, 190, 236, 295, 314, 361, 380, 590, 628, 722, 785, 1121, 1180, 1444, 1570, 1805, 2242, 2983, 3140, 3610, 4484, 5605, 5966, 7220, 9263, 11210, 11932, 14915, 18526, 21299, 22420, 29830, 37052, 42598, 46315, 56677, 59660, 85196, 92630, 106495, 113354, 175997, 185260, 212990, 226708, 283385, 351994, 425980, 566770, 703988, 879985, 1133540, 1759970, 3343943, 3519940, 6687886, 13375772, 16719715, 33439430, 66878860]

約数ペア:

[(1, 66878860), (2, 33439430), (4, 16719715), (5, 13375772), (10, 6687886), (19, 3519940), (20, 3343943), (38, 1759970), (59, 1133540), (76, 879985), (95, 703988), (118, 566770), (157, 425980), (190, 351994), (236, 283385), (295, 226708), (314, 212990), (361, 185260), (380, 175997), (590, 113354), (628, 106495), (722, 92630), (785, 85196), (1121, 59660), (1180, 56677), (1444, 46315), (1570, 42598), (1805, 37052), (2242, 29830), (2983, 22420), (3140, 21299), (3610, 18526), (4484, 14915), (5605, 11932), (5966, 11210), (7220, 9263)]