71231420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{273967}}^1$

素因数の和:273989

約数の個数: 24

約数和(自身を含む): 161093184

約数和(自身を除く): 89861764

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 273967, 547934, 1095868, 1369835, 2739670, 3561571, 5479340, 7123142, 14246284, 17807855, 35615710, 71231420]

約数ペア:

[(1, 71231420), (2, 35615710), (4, 17807855), (5, 14246284), (10, 7123142), (13, 5479340), (20, 3561571), (26, 2739670), (52, 1369835), (65, 1095868), (130, 547934), (260, 273967)]