28494760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{683}}^1$

素因数の和:850

約数の個数: 64

約数和(自身を含む): 73872000

約数和(自身を除く): 45377240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 149, 280, 298, 596, 683, 745, 1043, 1192, 1366, 1490, 2086, 2732, 2980, 3415, 4172, 4781, 5215, 5464, 5960, 6830, 8344, 9562, 10430, 13660, 19124, 20860, 23905, 27320, 38248, 41720, 47810, 95620, 101767, 191240, 203534, 407068, 508835, 712369, 814136, 1017670, 1424738, 2035340, 2849476, 3561845, 4070680, 5698952, 7123690, 14247380, 28494760]

約数ペア:

[(1, 28494760), (2, 14247380), (4, 7123690), (5, 5698952), (7, 4070680), (8, 3561845), (10, 2849476), (14, 2035340), (20, 1424738), (28, 1017670), (35, 814136), (40, 712369), (56, 508835), (70, 407068), (140, 203534), (149, 191240), (280, 101767), (298, 95620), (596, 47810), (683, 41720), (745, 38248), (1043, 27320), (1192, 23905), (1366, 20860), (1490, 19124), (2086, 13660), (2732, 10430), (2980, 9562), (3415, 8344), (4172, 6830), (4781, 5960), (5215, 5464)]