402147480

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{478747}}^1$

素因数の和:478768

約数の個数: 64

約数和(自身を含む): 1378794240

約数和(自身を除く): 976646760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 478747, 957494, 1436241, 1914988, 2393735, 2872482, 3351229, 3829976, 4787470, 5744964, 6702458, 7181205, 9574940, 10053687, 11489928, 13404916, 14362410, 16756145, 19149880, 20107374, 26809832, 28724820, 33512290, 40214748, 50268435, 57449640, 67024580, 80429496, 100536870, 134049160, 201073740, 402147480]

約数ペア:

[(1, 402147480), (2, 201073740), (3, 134049160), (4, 100536870), (5, 80429496), (6, 67024580), (7, 57449640), (8, 50268435), (10, 40214748), (12, 33512290), (14, 28724820), (15, 26809832), (20, 20107374), (21, 19149880), (24, 16756145), (28, 14362410), (30, 13404916), (35, 11489928), (40, 10053687), (42, 9574940), (56, 7181205), (60, 6702458), (70, 5744964), (84, 4787470), (105, 3829976), (120, 3351229), (140, 2872482), (168, 2393735), (210, 1914988), (280, 1436241), (420, 957494), (840, 478747)]