2586640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:200

約数の個数: 80

約数和(自身を含む): 7142400

約数和(自身を除く): 4555760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 149, 155, 217, 248, 280, 298, 310, 434, 496, 560, 596, 620, 745, 868, 1043, 1085, 1192, 1240, 1490, 1736, 2086, 2170, 2384, 2480, 2980, 3472, 4172, 4340, 4619, 5215, 5960, 8344, 8680, 9238, 10430, 11920, 16688, 17360, 18476, 20860, 23095, 32333, 36952, 41720, 46190, 64666, 73904, 83440, 92380, 129332, 161665, 184760, 258664, 323330, 369520, 517328, 646660, 1293320, 2586640]

約数ペア:

[(1, 2586640), (2, 1293320), (4, 646660), (5, 517328), (7, 369520), (8, 323330), (10, 258664), (14, 184760), (16, 161665), (20, 129332), (28, 92380), (31, 83440), (35, 73904), (40, 64666), (56, 46190), (62, 41720), (70, 36952), (80, 32333), (112, 23095), (124, 20860), (140, 18476), (149, 17360), (155, 16688), (217, 11920), (248, 10430), (280, 9238), (298, 8680), (310, 8344), (434, 5960), (496, 5215), (560, 4619), (596, 4340), (620, 4172), (745, 3472), (868, 2980), (1043, 2480), (1085, 2384), (1192, 2170), (1240, 2086), (1490, 1736)]