3161980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:238

約数の個数: 48

約数和(自身を含む): 7166880

約数和(自身を除く): 4004900

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 53, 76, 95, 106, 157, 190, 212, 265, 314, 380, 530, 628, 785, 1007, 1060, 1570, 2014, 2983, 3140, 4028, 5035, 5966, 8321, 10070, 11932, 14915, 16642, 20140, 29830, 33284, 41605, 59660, 83210, 158099, 166420, 316198, 632396, 790495, 1580990, 3161980]

約数ペア:

[(1, 3161980), (2, 1580990), (4, 790495), (5, 632396), (10, 316198), (19, 166420), (20, 158099), (38, 83210), (53, 59660), (76, 41605), (95, 33284), (106, 29830), (157, 20140), (190, 16642), (212, 14915), (265, 11932), (314, 10070), (380, 8321), (530, 5966), (628, 5035), (785, 4028), (1007, 3140), (1060, 2983), (1570, 2014)]