395992040

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{75571}}^1$

素因数の和:75713

約数の個数: 32

約数和(自身を含む): 897795360

約数和(自身を除く): 501803320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 75571, 151142, 302284, 377855, 604568, 755710, 1511420, 3022840, 9899801, 19799602, 39599204, 49499005, 79198408, 98998010, 197996020, 395992040]

約数ペア:

[(1, 395992040), (2, 197996020), (4, 98998010), (5, 79198408), (8, 49499005), (10, 39599204), (20, 19799602), (40, 9899801), (131, 3022840), (262, 1511420), (524, 755710), (655, 604568), (1048, 377855), (1310, 302284), (2620, 151142), (5240, 75571)]