20502870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{211}}^1$

素因数の和:341

約数の個数: 64

約数和(自身を含む): 51287040

約数和(自身を除く): 30784170

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 41, 79, 82, 123, 158, 205, 211, 237, 246, 395, 410, 422, 474, 615, 633, 790, 1055, 1185, 1230, 1266, 2110, 2370, 3165, 3239, 6330, 6478, 8651, 9717, 16195, 16669, 17302, 19434, 25953, 32390, 33338, 43255, 48585, 50007, 51906, 83345, 86510, 97170, 100014, 129765, 166690, 250035, 259530, 500070, 683429, 1366858, 2050287, 3417145, 4100574, 6834290, 10251435, 20502870]

約数ペア:

[(1, 20502870), (2, 10251435), (3, 6834290), (5, 4100574), (6, 3417145), (10, 2050287), (15, 1366858), (30, 683429), (41, 500070), (79, 259530), (82, 250035), (123, 166690), (158, 129765), (205, 100014), (211, 97170), (237, 86510), (246, 83345), (395, 51906), (410, 50007), (422, 48585), (474, 43255), (615, 33338), (633, 32390), (790, 25953), (1055, 19434), (1185, 17302), (1230, 16669), (1266, 16195), (2110, 9717), (2370, 8651), (3165, 6478), (3239, 6330)]