261423120

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{155609}}^1$

素因数の和:155632

約数の個数: 80

約数和(自身を含む): 926190720

約数和(自身を除く): 664767600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 155609, 311218, 466827, 622436, 778045, 933654, 1089263, 1244872, 1556090, 1867308, 2178526, 2334135, 2489744, 3112180, 3267789, 3734616, 4357052, 4668270, 5446315, 6224360, 6535578, 7469232, 8714104, 9336540, 10892630, 12448720, 13071156, 16338945, 17428208, 18673080, 21785260, 26142312, 32677890, 37346160, 43570520, 52284624, 65355780, 87141040, 130711560, 261423120]

約数ペア:

[(1, 261423120), (2, 130711560), (3, 87141040), (4, 65355780), (5, 52284624), (6, 43570520), (7, 37346160), (8, 32677890), (10, 26142312), (12, 21785260), (14, 18673080), (15, 17428208), (16, 16338945), (20, 13071156), (21, 12448720), (24, 10892630), (28, 9336540), (30, 8714104), (35, 7469232), (40, 6535578), (42, 6224360), (48, 5446315), (56, 4668270), (60, 4357052), (70, 3734616), (80, 3267789), (84, 3112180), (105, 2489744), (112, 2334135), (120, 2178526), (140, 1867308), (168, 1556090), (210, 1244872), (240, 1089263), (280, 933654), (336, 778045), (420, 622436), (560, 466827), (840, 311218), (1680, 155609)]