2045680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1$

素因数の和:314

約数の個数: 80

約数和(自身を含む): 5874624

約数和(自身を除く): 3828944

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 281, 364, 455, 520, 560, 562, 728, 910, 1040, 1124, 1405, 1456, 1820, 1967, 2248, 2810, 3640, 3653, 3934, 4496, 5620, 7280, 7306, 7868, 9835, 11240, 14612, 15736, 18265, 19670, 22480, 25571, 29224, 31472, 36530, 39340, 51142, 58448, 73060, 78680, 102284, 127855, 146120, 157360, 204568, 255710, 292240, 409136, 511420, 1022840, 2045680]

約数ペア:

[(1, 2045680), (2, 1022840), (4, 511420), (5, 409136), (7, 292240), (8, 255710), (10, 204568), (13, 157360), (14, 146120), (16, 127855), (20, 102284), (26, 78680), (28, 73060), (35, 58448), (40, 51142), (52, 39340), (56, 36530), (65, 31472), (70, 29224), (80, 25571), (91, 22480), (104, 19670), (112, 18265), (130, 15736), (140, 14612), (182, 11240), (208, 9835), (260, 7868), (280, 7306), (281, 7280), (364, 5620), (455, 4496), (520, 3934), (560, 3653), (562, 3640), (728, 2810), (910, 2248), (1040, 1967), (1124, 1820), (1405, 1456)]