20123961988

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{3613}}^1$

素因数の和:3773

約数の個数: 96

約数和(自身を含む): 40392608256

約数和(自身を除く): 20268646268

約数列:

[1, 2, 4, 13, 26, 43, 47, 52, 53, 86, 94, 106, 172, 188, 212, 559, 611, 689, 1118, 1222, 1378, 2021, 2236, 2279, 2444, 2491, 2756, 3613, 4042, 4558, 4982, 7226, 8084, 9116, 9964, 14452, 26273, 29627, 32383, 46969, 52546, 59254, 64766, 93938, 105092, 107113, 118508, 129532, 155359, 169811, 187876, 191489, 214226, 310718, 339622, 382978, 428452, 621436, 679244, 765956, 1392469, 2019667, 2207543, 2489357, 2784938, 4039334, 4415086, 4978714, 5569876, 7301873, 8078668, 8234027, 8830172, 8999983, 9957428, 14603746, 16468054, 17999966, 29207492, 32936108, 35999932, 94924349, 107042351, 116999779, 189848698, 214084702, 233999558, 379697396, 386999269, 428169404, 467999116, 773998538, 1547997076, 5030990497, 10061980994, 20123961988]

約数ペア:

[(1, 20123961988), (2, 10061980994), (4, 5030990497), (13, 1547997076), (26, 773998538), (43, 467999116), (47, 428169404), (52, 386999269), (53, 379697396), (86, 233999558), (94, 214084702), (106, 189848698), (172, 116999779), (188, 107042351), (212, 94924349), (559, 35999932), (611, 32936108), (689, 29207492), (1118, 17999966), (1222, 16468054), (1378, 14603746), (2021, 9957428), (2236, 8999983), (2279, 8830172), (2444, 8234027), (2491, 8078668), (2756, 7301873), (3613, 5569876), (4042, 4978714), (4558, 4415086), (4982, 4039334), (7226, 2784938), (8084, 2489357), (9116, 2207543), (9964, 2019667), (14452, 1392469), (26273, 765956), (29627, 679244), (32383, 621436), (46969, 428452), (52546, 382978), (59254, 339622), (64766, 310718), (93938, 214226), (105092, 191489), (107113, 187876), (118508, 169811), (129532, 155359)]