2018285240

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{321383}}^1$

素因数の和:321551

約数の個数: 32

約数和(自身を含む): 4570080480

約数和(自身を除く): 2551795240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 321383, 642766, 1285532, 1606915, 2571064, 3213830, 6427660, 12855320, 50457131, 100914262, 201828524, 252285655, 403657048, 504571310, 1009142620, 2018285240]

約数ペア:

[(1, 2018285240), (2, 1009142620), (4, 504571310), (5, 403657048), (8, 252285655), (10, 201828524), (20, 100914262), (40, 50457131), (157, 12855320), (314, 6427660), (628, 3213830), (785, 2571064), (1256, 1606915), (1570, 1285532), (3140, 642766), (6280, 321383)]