55401580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{443}}^1$

素因数の和:515

約数の個数: 72

約数和(自身を含む): 129678192

約数和(自身を除く): 74276612

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 130, 148, 169, 185, 260, 338, 370, 443, 481, 676, 740, 845, 886, 962, 1690, 1772, 1924, 2215, 2405, 3380, 4430, 4810, 5759, 6253, 8860, 9620, 11518, 12506, 16391, 23036, 25012, 28795, 31265, 32782, 57590, 62530, 65564, 74867, 81955, 115180, 125060, 149734, 163910, 213083, 299468, 327820, 374335, 426166, 748670, 852332, 1065415, 1497340, 2130830, 2770079, 4261660, 5540158, 11080316, 13850395, 27700790, 55401580]

約数ペア:

[(1, 55401580), (2, 27700790), (4, 13850395), (5, 11080316), (10, 5540158), (13, 4261660), (20, 2770079), (26, 2130830), (37, 1497340), (52, 1065415), (65, 852332), (74, 748670), (130, 426166), (148, 374335), (169, 327820), (185, 299468), (260, 213083), (338, 163910), (370, 149734), (443, 125060), (481, 115180), (676, 81955), (740, 74867), (845, 65564), (886, 62530), (962, 57590), (1690, 32782), (1772, 31265), (1924, 28795), (2215, 25012), (2405, 23036), (3380, 16391), (4430, 12506), (4810, 11518), (5759, 9620), (6253, 8860)]