207821480

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{167}}^1\times {\mathrm{587}}^1$

素因数の和:818

約数の個数: 64

約数和(自身を含む): 480090240

約数和(自身を除く): 272268760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 167, 212, 265, 334, 424, 530, 587, 668, 835, 1060, 1174, 1336, 1670, 2120, 2348, 2935, 3340, 4696, 5870, 6680, 8851, 11740, 17702, 23480, 31111, 35404, 44255, 62222, 70808, 88510, 98029, 124444, 155555, 177020, 196058, 248888, 311110, 354040, 392116, 490145, 622220, 784232, 980290, 1244440, 1960580, 3921160, 5195537, 10391074, 20782148, 25977685, 41564296, 51955370, 103910740, 207821480]

約数ペア:

[(1, 207821480), (2, 103910740), (4, 51955370), (5, 41564296), (8, 25977685), (10, 20782148), (20, 10391074), (40, 5195537), (53, 3921160), (106, 1960580), (167, 1244440), (212, 980290), (265, 784232), (334, 622220), (424, 490145), (530, 392116), (587, 354040), (668, 311110), (835, 248888), (1060, 196058), (1174, 177020), (1336, 155555), (1670, 124444), (2120, 98029), (2348, 88510), (2935, 70808), (3340, 62222), (4696, 44255), (5870, 35404), (6680, 31111), (8851, 23480), (11740, 17702)]