2017665980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^2\times {\mathrm{1721}}^1$

素因数の和:1887

約数の個数: 72

約数和(自身を含む): 4689198864

約数和(自身を除く): 2671532884

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 73, 110, 146, 220, 292, 365, 730, 803, 1460, 1606, 1721, 3212, 3442, 4015, 5329, 6884, 8030, 8605, 10658, 16060, 17210, 18931, 21316, 26645, 34420, 37862, 53290, 58619, 75724, 94655, 106580, 117238, 125633, 189310, 234476, 251266, 293095, 378620, 502532, 586190, 628165, 1172380, 1256330, 1381963, 2512660, 2763926, 5527852, 6909815, 9171209, 13819630, 18342418, 27639260, 36684836, 45856045, 91712090, 100883299, 183424180, 201766598, 403533196, 504416495, 1008832990, 2017665980]

約数ペア:

[(1, 2017665980), (2, 1008832990), (4, 504416495), (5, 403533196), (10, 201766598), (11, 183424180), (20, 100883299), (22, 91712090), (44, 45856045), (55, 36684836), (73, 27639260), (110, 18342418), (146, 13819630), (220, 9171209), (292, 6909815), (365, 5527852), (730, 2763926), (803, 2512660), (1460, 1381963), (1606, 1256330), (1721, 1172380), (3212, 628165), (3442, 586190), (4015, 502532), (5329, 378620), (6884, 293095), (8030, 251266), (8605, 234476), (10658, 189310), (16060, 125633), (17210, 117238), (18931, 106580), (21316, 94655), (26645, 75724), (34420, 58619), (37862, 53290)]