20121053992

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1\times {\mathrm{401}}^1$

素因数の和:707

約数の個数: 128

約数和(自身を含む): 42790809600

約数和(自身を除く): 22669755608

約数列:

[1, 2, 4, 8, 13, 26, 29, 52, 58, 104, 116, 127, 131, 232, 254, 262, 377, 401, 508, 524, 754, 802, 1016, 1048, 1508, 1604, 1651, 1703, 3016, 3208, 3302, 3406, 3683, 3799, 5213, 6604, 6812, 7366, 7598, 10426, 11629, 13208, 13624, 14732, 15196, 16637, 20852, 23258, 29464, 30392, 33274, 41704, 46516, 47879, 49387, 50927, 52531, 66548, 93032, 95758, 98774, 101854, 105062, 133096, 151177, 191516, 197548, 203708, 210124, 216281, 302354, 383032, 395096, 407416, 420248, 432562, 482473, 604708, 662051, 682903, 865124, 964946, 1209416, 1324102, 1365806, 1476883, 1523399, 1730248, 1929892, 2648204, 2731612, 2953766, 3046798, 3859784, 5296408, 5463224, 5907532, 6093596, 6272149, 6671437, 11815064, 12187192, 12544298, 13342874, 19199479, 19804187, 25088596, 26685748, 38398958, 39608374, 50177192, 53371496, 76797916, 79216748, 86728681, 153595832, 158433496, 173457362, 193471673, 346914724, 386943346, 693829448, 773886692, 1547773384, 2515131749, 5030263498, 10060526996, 20121053992]

約数ペア:

[(1, 20121053992), (2, 10060526996), (4, 5030263498), (8, 2515131749), (13, 1547773384), (26, 773886692), (29, 693829448), (52, 386943346), (58, 346914724), (104, 193471673), (116, 173457362), (127, 158433496), (131, 153595832), (232, 86728681), (254, 79216748), (262, 76797916), (377, 53371496), (401, 50177192), (508, 39608374), (524, 38398958), (754, 26685748), (802, 25088596), (1016, 19804187), (1048, 19199479), (1508, 13342874), (1604, 12544298), (1651, 12187192), (1703, 11815064), (3016, 6671437), (3208, 6272149), (3302, 6093596), (3406, 5907532), (3683, 5463224), (3799, 5296408), (5213, 3859784), (6604, 3046798), (6812, 2953766), (7366, 2731612), (7598, 2648204), (10426, 1929892), (11629, 1730248), (13208, 1523399), (13624, 1476883), (14732, 1365806), (15196, 1324102), (16637, 1209416), (20852, 964946), (23258, 865124), (29464, 682903), (30392, 662051), (33274, 604708), (41704, 482473), (46516, 432562), (47879, 420248), (49387, 407416), (50927, 395096), (52531, 383032), (66548, 302354), (93032, 216281), (95758, 210124), (98774, 203708), (101854, 197548), (105062, 191516), (133096, 151177)]