254436880

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1\times {\mathrm{317}}^1$

素因数の和:536

約数の個数: 80

約数和(自身を含む): 605675520

約数和(自身を除く): 351238640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 127, 158, 254, 316, 317, 395, 508, 632, 634, 635, 790, 1016, 1264, 1268, 1270, 1580, 1585, 2032, 2536, 2540, 3160, 3170, 5072, 5080, 6320, 6340, 10033, 10160, 12680, 20066, 25043, 25360, 40132, 40259, 50086, 50165, 80264, 80518, 100172, 100330, 125215, 160528, 161036, 200344, 200660, 201295, 250430, 322072, 400688, 401320, 402590, 500860, 644144, 802640, 805180, 1001720, 1610360, 2003440, 3180461, 3220720, 6360922, 12721844, 15902305, 25443688, 31804610, 50887376, 63609220, 127218440, 254436880]

約数ペア:

[(1, 254436880), (2, 127218440), (4, 63609220), (5, 50887376), (8, 31804610), (10, 25443688), (16, 15902305), (20, 12721844), (40, 6360922), (79, 3220720), (80, 3180461), (127, 2003440), (158, 1610360), (254, 1001720), (316, 805180), (317, 802640), (395, 644144), (508, 500860), (632, 402590), (634, 401320), (635, 400688), (790, 322072), (1016, 250430), (1264, 201295), (1268, 200660), (1270, 200344), (1580, 161036), (1585, 160528), (2032, 125215), (2536, 100330), (2540, 100172), (3160, 80518), (3170, 80264), (5072, 50165), (5080, 50086), (6320, 40259), (6340, 40132), (10033, 25360), (10160, 25043), (12680, 20066)]