1727320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:248

約数の個数: 64

約数和(自身を含む): 4608000

約数和(自身を除く): 2880680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 199, 217, 248, 280, 310, 398, 434, 620, 796, 868, 995, 1085, 1240, 1393, 1592, 1736, 1990, 2170, 2786, 3980, 4340, 5572, 6169, 6965, 7960, 8680, 11144, 12338, 13930, 24676, 27860, 30845, 43183, 49352, 55720, 61690, 86366, 123380, 172732, 215915, 246760, 345464, 431830, 863660, 1727320]

約数ペア:

[(1, 1727320), (2, 863660), (4, 431830), (5, 345464), (7, 246760), (8, 215915), (10, 172732), (14, 123380), (20, 86366), (28, 61690), (31, 55720), (35, 49352), (40, 43183), (56, 30845), (62, 27860), (70, 24676), (124, 13930), (140, 12338), (155, 11144), (199, 8680), (217, 7960), (248, 6965), (280, 6169), (310, 5572), (398, 4340), (434, 3980), (620, 2786), (796, 2170), (868, 1990), (995, 1736), (1085, 1592), (1240, 1393)]