387305320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{312343}}^1$

素因数の和:312385

約数の個数: 32

約数和(自身を含む): 899550720

約数和(自身を除く): 512245400

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 312343, 624686, 1249372, 1561715, 2498744, 3123430, 6246860, 9682633, 12493720, 19365266, 38730532, 48413165, 77461064, 96826330, 193652660, 387305320]

約数ペア:

[(1, 387305320), (2, 193652660), (4, 96826330), (5, 77461064), (8, 48413165), (10, 38730532), (20, 19365266), (31, 12493720), (40, 9682633), (62, 6246860), (124, 3123430), (155, 2498744), (248, 1561715), (310, 1249372), (620, 624686), (1240, 312343)]