1920620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1$

素因数の和:194

約数の個数: 48

約数和(自身を含む): 4445280

約数和(自身を除く): 2524660

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 83, 89, 130, 166, 178, 260, 332, 356, 415, 445, 830, 890, 1079, 1157, 1660, 1780, 2158, 2314, 4316, 4628, 5395, 5785, 7387, 10790, 11570, 14774, 21580, 23140, 29548, 36935, 73870, 96031, 147740, 192062, 384124, 480155, 960310, 1920620]

約数ペア:

[(1, 1920620), (2, 960310), (4, 480155), (5, 384124), (10, 192062), (13, 147740), (20, 96031), (26, 73870), (52, 36935), (65, 29548), (83, 23140), (89, 21580), (130, 14774), (166, 11570), (178, 10790), (260, 7387), (332, 5785), (356, 5395), (415, 4628), (445, 4316), (830, 2314), (890, 2158), (1079, 1780), (1157, 1660)]