20545746

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{293}}^1$

素因数の和:371

約数の個数: 64

約数和(自身を含む): 47416320

約数和(自身を除く): 26870574

約数列:

[1, 2, 3, 6, 13, 26, 29, 31, 39, 58, 62, 78, 87, 93, 174, 186, 293, 377, 403, 586, 754, 806, 879, 899, 1131, 1209, 1758, 1798, 2262, 2418, 2697, 3809, 5394, 7618, 8497, 9083, 11427, 11687, 16994, 18166, 22854, 23374, 25491, 27249, 35061, 50982, 54498, 70122, 110461, 118079, 220922, 236158, 263407, 331383, 354237, 526814, 662766, 708474, 790221, 1580442, 3424291, 6848582, 10272873, 20545746]

約数ペア:

[(1, 20545746), (2, 10272873), (3, 6848582), (6, 3424291), (13, 1580442), (26, 790221), (29, 708474), (31, 662766), (39, 526814), (58, 354237), (62, 331383), (78, 263407), (87, 236158), (93, 220922), (174, 118079), (186, 110461), (293, 70122), (377, 54498), (403, 50982), (586, 35061), (754, 27249), (806, 25491), (879, 23374), (899, 22854), (1131, 18166), (1209, 16994), (1758, 11687), (1798, 11427), (2262, 9083), (2418, 8497), (2697, 7618), (3809, 5394)]