205448980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{11821}}^1$

素因数の和:11920

約数の個数: 48

約数和(自身を含む): 476663040

約数和(自身を除く): 271214060

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 110, 158, 220, 316, 395, 790, 869, 1580, 1738, 3476, 4345, 8690, 11821, 17380, 23642, 47284, 59105, 118210, 130031, 236420, 260062, 520124, 650155, 933859, 1300310, 1867718, 2600620, 3735436, 4669295, 9338590, 10272449, 18677180, 20544898, 41089796, 51362245, 102724490, 205448980]

約数ペア:

[(1, 205448980), (2, 102724490), (4, 51362245), (5, 41089796), (10, 20544898), (11, 18677180), (20, 10272449), (22, 9338590), (44, 4669295), (55, 3735436), (79, 2600620), (110, 1867718), (158, 1300310), (220, 933859), (316, 650155), (395, 520124), (790, 260062), (869, 236420), (1580, 130031), (1738, 118210), (3476, 59105), (4345, 47284), (8690, 23642), (11821, 17380)]