520208

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:123

約数の個数: 40

約数和(自身を含む): 1130136

約数和(自身を除く): 609928

約数列:

[1, 2, 4, 8, 13, 16, 26, 41, 52, 61, 82, 104, 122, 164, 208, 244, 328, 488, 533, 656, 793, 976, 1066, 1586, 2132, 2501, 3172, 4264, 5002, 6344, 8528, 10004, 12688, 20008, 32513, 40016, 65026, 130052, 260104, 520208]

約数ペア:

[(1, 520208), (2, 260104), (4, 130052), (8, 65026), (13, 40016), (16, 32513), (26, 20008), (41, 12688), (52, 10004), (61, 8528), (82, 6344), (104, 5002), (122, 4264), (164, 3172), (208, 2501), (244, 2132), (328, 1586), (488, 1066), (533, 976), (656, 793)]