20661390

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{1327}}^1$

素因数の和:1513

約数の個数: 48

約数和(自身を含む): 54070848

約数和(自身を除く): 33409458

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 173, 346, 519, 865, 1038, 1327, 1557, 1730, 2595, 2654, 3114, 3981, 5190, 6635, 7785, 7962, 11943, 13270, 15570, 19905, 23886, 39810, 59715, 119430, 229571, 459142, 688713, 1147855, 1377426, 2066139, 2295710, 3443565, 4132278, 6887130, 10330695, 20661390]

約数ペア:

[(1, 20661390), (2, 10330695), (3, 6887130), (5, 4132278), (6, 3443565), (9, 2295710), (10, 2066139), (15, 1377426), (18, 1147855), (30, 688713), (45, 459142), (90, 229571), (173, 119430), (346, 59715), (519, 39810), (865, 23886), (1038, 19905), (1327, 15570), (1557, 13270), (1730, 11943), (2595, 7962), (2654, 7785), (3114, 6635), (3981, 5190)]