284886980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{290701}}^1$

素因数の和:290724

約数の個数: 36

約数和(自身を含む): 695940588

約数和(自身を除く): 411053608

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 290701, 581402, 1162804, 1453505, 2034907, 2907010, 4069814, 5814020, 8139628, 10174535, 14244349, 20349070, 28488698, 40698140, 56977396, 71221745, 142443490, 284886980]

約数ペア:

[(1, 284886980), (2, 142443490), (4, 71221745), (5, 56977396), (7, 40698140), (10, 28488698), (14, 20349070), (20, 14244349), (28, 10174535), (35, 8139628), (49, 5814020), (70, 4069814), (98, 2907010), (140, 2034907), (196, 1453505), (245, 1162804), (490, 581402), (980, 290701)]