20505066

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:203

約数の個数: 64

約数和(自身を含む): 45619200

約数和(自身を除く): 25114134

約数列:

[1, 2, 3, 6, 19, 38, 43, 47, 57, 86, 89, 94, 114, 129, 141, 178, 258, 267, 282, 534, 817, 893, 1634, 1691, 1786, 2021, 2451, 2679, 3382, 3827, 4042, 4183, 4902, 5073, 5358, 6063, 7654, 8366, 10146, 11481, 12126, 12549, 22962, 25098, 38399, 72713, 76798, 79477, 115197, 145426, 158954, 179869, 218139, 230394, 238431, 359738, 436278, 476862, 539607, 1079214, 3417511, 6835022, 10252533, 20505066]

約数ペア:

[(1, 20505066), (2, 10252533), (3, 6835022), (6, 3417511), (19, 1079214), (38, 539607), (43, 476862), (47, 436278), (57, 359738), (86, 238431), (89, 230394), (94, 218139), (114, 179869), (129, 158954), (141, 145426), (178, 115197), (258, 79477), (267, 76798), (282, 72713), (534, 38399), (817, 25098), (893, 22962), (1634, 12549), (1691, 12126), (1786, 11481), (2021, 10146), (2451, 8366), (2679, 7654), (3382, 6063), (3827, 5358), (4042, 5073), (4183, 4902)]