28874020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{6653}}^1$

素因数の和:6700

約数の個数: 48

約数和(自身を含む): 71543808

約数和(自身を除く): 42669788

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 6653, 13306, 26612, 33265, 46571, 66530, 93142, 133060, 186284, 206243, 232855, 412486, 465710, 824972, 931420, 1031215, 1443701, 2062430, 2887402, 4124860, 5774804, 7218505, 14437010, 28874020]

約数ペア:

[(1, 28874020), (2, 14437010), (4, 7218505), (5, 5774804), (7, 4124860), (10, 2887402), (14, 2062430), (20, 1443701), (28, 1031215), (31, 931420), (35, 824972), (62, 465710), (70, 412486), (124, 232855), (140, 206243), (155, 186284), (217, 133060), (310, 93142), (434, 66530), (620, 46571), (868, 33265), (1085, 26612), (2170, 13306), (4340, 6653)]