213161255

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{179}}^1$

素因数の和:419

約数の個数: 32

約数和(自身を含む): 272341440

約数和(自身を除く): 59180185

約数列:

[1, 5, 37, 41, 157, 179, 185, 205, 785, 895, 1517, 5809, 6437, 6623, 7339, 7585, 28103, 29045, 32185, 33115, 36695, 140515, 238169, 271543, 1039811, 1152223, 1190845, 1357715, 5199055, 5761115, 42632251, 213161255]

約数ペア:

[(1, 213161255), (5, 42632251), (37, 5761115), (41, 5199055), (157, 1357715), (179, 1190845), (185, 1152223), (205, 1039811), (785, 271543), (895, 238169), (1517, 140515), (5809, 36695), (6437, 33115), (6623, 32185), (7339, 29045), (7585, 28103)]