90796720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{577}}^1$

素因数の和:878

約数の個数: 80

約数和(自身を含む): 242538048

約数和(自身を除く): 151741328

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 281, 560, 562, 577, 1124, 1154, 1405, 1967, 2248, 2308, 2810, 2885, 3934, 4039, 4496, 4616, 5620, 5770, 7868, 8078, 9232, 9835, 11240, 11540, 15736, 16156, 19670, 20195, 22480, 23080, 31472, 32312, 39340, 40390, 46160, 64624, 78680, 80780, 157360, 161560, 162137, 323120, 324274, 648548, 810685, 1134959, 1297096, 1621370, 2269918, 2594192, 3242740, 4539836, 5674795, 6485480, 9079672, 11349590, 12970960, 18159344, 22699180, 45398360, 90796720]

約数ペア:

[(1, 90796720), (2, 45398360), (4, 22699180), (5, 18159344), (7, 12970960), (8, 11349590), (10, 9079672), (14, 6485480), (16, 5674795), (20, 4539836), (28, 3242740), (35, 2594192), (40, 2269918), (56, 1621370), (70, 1297096), (80, 1134959), (112, 810685), (140, 648548), (280, 324274), (281, 323120), (560, 162137), (562, 161560), (577, 157360), (1124, 80780), (1154, 78680), (1405, 64624), (1967, 46160), (2248, 40390), (2308, 39340), (2810, 32312), (2885, 31472), (3934, 23080), (4039, 22480), (4496, 20195), (4616, 19670), (5620, 16156), (5770, 15736), (7868, 11540), (8078, 11240), (9232, 9835)]