7815460

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{157}}^1$

素因数の和:316

約数の個数: 48

約数和(自身を含む): 17519040

約数和(自身を除く): 9703580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 131, 157, 190, 262, 314, 380, 524, 628, 655, 785, 1310, 1570, 2489, 2620, 2983, 3140, 4978, 5966, 9956, 11932, 12445, 14915, 20567, 24890, 29830, 41134, 49780, 59660, 82268, 102835, 205670, 390773, 411340, 781546, 1563092, 1953865, 3907730, 7815460]

約数ペア:

[(1, 7815460), (2, 3907730), (4, 1953865), (5, 1563092), (10, 781546), (19, 411340), (20, 390773), (38, 205670), (76, 102835), (95, 82268), (131, 59660), (157, 49780), (190, 41134), (262, 29830), (314, 24890), (380, 20567), (524, 14915), (628, 12445), (655, 11932), (785, 9956), (1310, 5966), (1570, 4978), (2489, 3140), (2620, 2983)]