21253046320

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{101051}}^1$

素因数の和:101314

約数の個数: 80

約数和(自身を含む): 54131535360

約数和(自身を除く): 32878489040

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 239, 440, 478, 880, 956, 1195, 1912, 2390, 2629, 3824, 4780, 5258, 9560, 10516, 13145, 19120, 21032, 26290, 42064, 52580, 101051, 105160, 202102, 210320, 404204, 505255, 808408, 1010510, 1111561, 1616816, 2021020, 2223122, 4042040, 4446244, 5557805, 8084080, 8892488, 11115610, 17784976, 22231220, 24151189, 44462440, 48302378, 88924880, 96604756, 120755945, 193209512, 241511890, 265663079, 386419024, 483023780, 531326158, 966047560, 1062652316, 1328315395, 1932095120, 2125304632, 2656630790, 4250609264, 5313261580, 10626523160, 21253046320]

約数ペア:

[(1, 21253046320), (2, 10626523160), (4, 5313261580), (5, 4250609264), (8, 2656630790), (10, 2125304632), (11, 1932095120), (16, 1328315395), (20, 1062652316), (22, 966047560), (40, 531326158), (44, 483023780), (55, 386419024), (80, 265663079), (88, 241511890), (110, 193209512), (176, 120755945), (220, 96604756), (239, 88924880), (440, 48302378), (478, 44462440), (880, 24151189), (956, 22231220), (1195, 17784976), (1912, 11115610), (2390, 8892488), (2629, 8084080), (3824, 5557805), (4780, 4446244), (5258, 4042040), (9560, 2223122), (10516, 2021020), (13145, 1616816), (19120, 1111561), (21032, 1010510), (26290, 808408), (42064, 505255), (52580, 404204), (101051, 210320), (105160, 202102)]