204429940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71479}}^1$

素因数の和:71512

約数の個数: 48

約数和(自身を含む): 504362880

約数和(自身を除く): 299932940

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 71479, 142958, 285916, 357395, 714790, 786269, 929227, 1429580, 1572538, 1858454, 3145076, 3716908, 3931345, 4646135, 7862690, 9292270, 10221497, 15725380, 18584540, 20442994, 40885988, 51107485, 102214970, 204429940]

約数ペア:

[(1, 204429940), (2, 102214970), (4, 51107485), (5, 40885988), (10, 20442994), (11, 18584540), (13, 15725380), (20, 10221497), (22, 9292270), (26, 7862690), (44, 4646135), (52, 3931345), (55, 3716908), (65, 3145076), (110, 1858454), (130, 1572538), (143, 1429580), (220, 929227), (260, 786269), (286, 714790), (572, 357395), (715, 285916), (1430, 142958), (2860, 71479)]