20420580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{1613}}^1$

素因数の和:1836

約数の個数: 48

約数和(自身を含む): 57484224

約数和(自身を除く): 37063644

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 211, 422, 633, 844, 1055, 1266, 1613, 2110, 2532, 3165, 3226, 4220, 4839, 6330, 6452, 8065, 9678, 12660, 16130, 19356, 24195, 32260, 48390, 96780, 340343, 680686, 1021029, 1361372, 1701715, 2042058, 3403430, 4084116, 5105145, 6806860, 10210290, 20420580]

約数ペア:

[(1, 20420580), (2, 10210290), (3, 6806860), (4, 5105145), (5, 4084116), (6, 3403430), (10, 2042058), (12, 1701715), (15, 1361372), (20, 1021029), (30, 680686), (60, 340343), (211, 96780), (422, 48390), (633, 32260), (844, 24195), (1055, 19356), (1266, 16130), (1613, 12660), (2110, 9678), (2532, 8065), (3165, 6452), (3226, 6330), (4220, 4839)]