131261240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{269}}^1\times {\mathrm{1109}}^1$

素因数の和:1400

約数の個数: 64

約数和(自身を含む): 323676000

約数和(自身を除く): 192414760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 269, 440, 538, 1076, 1109, 1345, 2152, 2218, 2690, 2959, 4436, 5380, 5545, 5918, 8872, 10760, 11090, 11836, 12199, 14795, 22180, 23672, 24398, 29590, 44360, 48796, 59180, 60995, 97592, 118360, 121990, 243980, 298321, 487960, 596642, 1193284, 1491605, 2386568, 2983210, 3281531, 5966420, 6563062, 11932840, 13126124, 16407655, 26252248, 32815310, 65630620, 131261240]

約数ペア:

[(1, 131261240), (2, 65630620), (4, 32815310), (5, 26252248), (8, 16407655), (10, 13126124), (11, 11932840), (20, 6563062), (22, 5966420), (40, 3281531), (44, 2983210), (55, 2386568), (88, 1491605), (110, 1193284), (220, 596642), (269, 487960), (440, 298321), (538, 243980), (1076, 121990), (1109, 118360), (1345, 97592), (2152, 60995), (2218, 59180), (2690, 48796), (2959, 44360), (4436, 29590), (5380, 24398), (5545, 23672), (5918, 22180), (8872, 14795), (10760, 12199), (11090, 11836)]