129241640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{1229}}^1$

素因数の和:1490

約数の個数: 64

約数和(自身を含む): 318816000

約数和(自身を除く): 189574360

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 239, 440, 478, 956, 1195, 1229, 1912, 2390, 2458, 2629, 4780, 4916, 5258, 6145, 9560, 9832, 10516, 12290, 13145, 13519, 21032, 24580, 26290, 27038, 49160, 52580, 54076, 67595, 105160, 108152, 135190, 270380, 293731, 540760, 587462, 1174924, 1468655, 2349848, 2937310, 3231041, 5874620, 6462082, 11749240, 12924164, 16155205, 25848328, 32310410, 64620820, 129241640]

約数ペア:

[(1, 129241640), (2, 64620820), (4, 32310410), (5, 25848328), (8, 16155205), (10, 12924164), (11, 11749240), (20, 6462082), (22, 5874620), (40, 3231041), (44, 2937310), (55, 2349848), (88, 1468655), (110, 1174924), (220, 587462), (239, 540760), (440, 293731), (478, 270380), (956, 135190), (1195, 108152), (1229, 105160), (1912, 67595), (2390, 54076), (2458, 52580), (2629, 49160), (4780, 27038), (4916, 26290), (5258, 24580), (6145, 21032), (9560, 13519), (9832, 13145), (10516, 12290)]