16615280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{239}}^1$

素因数の和:342

約数の個数: 80

約数和(自身を含む): 42854400

約数和(自身を除く): 26239120

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 79, 80, 88, 110, 158, 176, 220, 239, 316, 395, 440, 478, 632, 790, 869, 880, 956, 1195, 1264, 1580, 1738, 1912, 2390, 2629, 3160, 3476, 3824, 4345, 4780, 5258, 6320, 6952, 8690, 9560, 10516, 13145, 13904, 17380, 18881, 19120, 21032, 26290, 34760, 37762, 42064, 52580, 69520, 75524, 94405, 105160, 151048, 188810, 207691, 210320, 302096, 377620, 415382, 755240, 830764, 1038455, 1510480, 1661528, 2076910, 3323056, 4153820, 8307640, 16615280]

約数ペア:

[(1, 16615280), (2, 8307640), (4, 4153820), (5, 3323056), (8, 2076910), (10, 1661528), (11, 1510480), (16, 1038455), (20, 830764), (22, 755240), (40, 415382), (44, 377620), (55, 302096), (79, 210320), (80, 207691), (88, 188810), (110, 151048), (158, 105160), (176, 94405), (220, 75524), (239, 69520), (316, 52580), (395, 42064), (440, 37762), (478, 34760), (632, 26290), (790, 21032), (869, 19120), (880, 18881), (956, 17380), (1195, 13904), (1264, 13145), (1580, 10516), (1738, 9560), (1912, 8690), (2390, 6952), (2629, 6320), (3160, 5258), (3476, 4780), (3824, 4345)]