202604180

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{2339}}^1$

素因数の和:2480

約数の個数: 48

約数和(自身を含む): 438721920

約数和(自身を除く): 236117740

約数列:

[1, 2, 4, 5, 10, 20, 61, 71, 122, 142, 244, 284, 305, 355, 610, 710, 1220, 1420, 2339, 4331, 4678, 8662, 9356, 11695, 17324, 21655, 23390, 43310, 46780, 86620, 142679, 166069, 285358, 332138, 570716, 664276, 713395, 830345, 1426790, 1660690, 2853580, 3321380, 10130209, 20260418, 40520836, 50651045, 101302090, 202604180]

約数ペア:

[(1, 202604180), (2, 101302090), (4, 50651045), (5, 40520836), (10, 20260418), (20, 10130209), (61, 3321380), (71, 2853580), (122, 1660690), (142, 1426790), (244, 830345), (284, 713395), (305, 664276), (355, 570716), (610, 332138), (710, 285358), (1220, 166069), (1420, 142679), (2339, 86620), (4331, 46780), (4678, 43310), (8662, 23390), (9356, 21655), (11695, 17324)]