131415720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{2731}}^1$

素因数の和:3146

約数の個数: 64

約数和(自身を含む): 395375040

約数和(自身を除く): 263959320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 401, 802, 1203, 1604, 2005, 2406, 2731, 3208, 4010, 4812, 5462, 6015, 8020, 8193, 9624, 10924, 12030, 13655, 16040, 16386, 21848, 24060, 27310, 32772, 40965, 48120, 54620, 65544, 81930, 109240, 163860, 327720, 1095131, 2190262, 3285393, 4380524, 5475655, 6570786, 8761048, 10951310, 13141572, 16426965, 21902620, 26283144, 32853930, 43805240, 65707860, 131415720]

約数ペア:

[(1, 131415720), (2, 65707860), (3, 43805240), (4, 32853930), (5, 26283144), (6, 21902620), (8, 16426965), (10, 13141572), (12, 10951310), (15, 8761048), (20, 6570786), (24, 5475655), (30, 4380524), (40, 3285393), (60, 2190262), (120, 1095131), (401, 327720), (802, 163860), (1203, 109240), (1604, 81930), (2005, 65544), (2406, 54620), (2731, 48120), (3208, 40965), (4010, 32772), (4812, 27310), (5462, 24060), (6015, 21848), (8020, 16386), (8193, 16040), (9624, 13655), (10924, 12030)]