261565910

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{49633}}^1$

素因数の和:49688

約数の個数: 32

約数和(自身を含む): 514605312

約数和(自身を除く): 253039402

約数列:

[1, 2, 5, 10, 17, 31, 34, 62, 85, 155, 170, 310, 527, 1054, 2635, 5270, 49633, 99266, 248165, 496330, 843761, 1538623, 1687522, 3077246, 4218805, 7693115, 8437610, 15386230, 26156591, 52313182, 130782955, 261565910]

約数ペア:

[(1, 261565910), (2, 130782955), (5, 52313182), (10, 26156591), (17, 15386230), (31, 8437610), (34, 7693115), (62, 4218805), (85, 3077246), (155, 1687522), (170, 1538623), (310, 843761), (527, 496330), (1054, 248165), (2635, 99266), (5270, 49633)]