7830220

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1$

素因数の和:234

約数の個数: 48

約数和(自身を含む): 17146080

約数和(自身を除く): 9315860

約数列:

[1, 2, 4, 5, 10, 20, 53, 83, 89, 106, 166, 178, 212, 265, 332, 356, 415, 445, 530, 830, 890, 1060, 1660, 1780, 4399, 4717, 7387, 8798, 9434, 14774, 17596, 18868, 21995, 23585, 29548, 36935, 43990, 47170, 73870, 87980, 94340, 147740, 391511, 783022, 1566044, 1957555, 3915110, 7830220]

約数ペア:

[(1, 7830220), (2, 3915110), (4, 1957555), (5, 1566044), (10, 783022), (20, 391511), (53, 147740), (83, 94340), (89, 87980), (106, 73870), (166, 47170), (178, 43990), (212, 36935), (265, 29548), (332, 23585), (356, 21995), (415, 18868), (445, 17596), (530, 14774), (830, 9434), (890, 8798), (1060, 7387), (1660, 4717), (1780, 4399)]