217317830

素因数分解:

$2^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1\times {\mathrm{1427}}^1$

素因数の和:1688

約数の個数: 32

約数和(自身を含む): 398000736

約数和(自身を除く): 180682906

約数列:

[1, 2, 5, 10, 97, 157, 194, 314, 485, 785, 970, 1427, 1570, 2854, 7135, 14270, 15229, 30458, 76145, 138419, 152290, 224039, 276838, 448078, 692095, 1120195, 1384190, 2240390, 21731783, 43463566, 108658915, 217317830]

約数ペア:

[(1, 217317830), (2, 108658915), (5, 43463566), (10, 21731783), (97, 2240390), (157, 1384190), (194, 1120195), (314, 692095), (485, 448078), (785, 276838), (970, 224039), (1427, 152290), (1570, 138419), (2854, 76145), (7135, 30458), (14270, 15229)]