127817560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{761}}^1$

素因数の和:821

約数の個数: 128

約数和(自身を含む): 345643200

約数和(自身を除く): 217825640

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 19, 20, 26, 34, 38, 40, 52, 65, 68, 76, 85, 95, 104, 130, 136, 152, 170, 190, 221, 247, 260, 323, 340, 380, 442, 494, 520, 646, 680, 760, 761, 884, 988, 1105, 1235, 1292, 1522, 1615, 1768, 1976, 2210, 2470, 2584, 3044, 3230, 3805, 4199, 4420, 4940, 6088, 6460, 7610, 8398, 8840, 9880, 9893, 12920, 12937, 14459, 15220, 16796, 19786, 20995, 25874, 28918, 30440, 33592, 39572, 41990, 49465, 51748, 57836, 64685, 72295, 79144, 83980, 98930, 103496, 115672, 129370, 144590, 167960, 168181, 187967, 197860, 245803, 258740, 289180, 336362, 375934, 395720, 491606, 517480, 578360, 672724, 751868, 840905, 939835, 983212, 1229015, 1345448, 1503736, 1681810, 1879670, 1966424, 2458030, 3195439, 3363620, 3759340, 4916060, 6390878, 6727240, 7518680, 9832120, 12781756, 15977195, 25563512, 31954390, 63908780, 127817560]

約数ペア:

[(1, 127817560), (2, 63908780), (4, 31954390), (5, 25563512), (8, 15977195), (10, 12781756), (13, 9832120), (17, 7518680), (19, 6727240), (20, 6390878), (26, 4916060), (34, 3759340), (38, 3363620), (40, 3195439), (52, 2458030), (65, 1966424), (68, 1879670), (76, 1681810), (85, 1503736), (95, 1345448), (104, 1229015), (130, 983212), (136, 939835), (152, 840905), (170, 751868), (190, 672724), (221, 578360), (247, 517480), (260, 491606), (323, 395720), (340, 375934), (380, 336362), (442, 289180), (494, 258740), (520, 245803), (646, 197860), (680, 187967), (760, 168181), (761, 167960), (884, 144590), (988, 129370), (1105, 115672), (1235, 103496), (1292, 98930), (1522, 83980), (1615, 79144), (1768, 72295), (1976, 64685), (2210, 57836), (2470, 51748), (2584, 49465), (3044, 41990), (3230, 39572), (3805, 33592), (4199, 30440), (4420, 28918), (4940, 25874), (6088, 20995), (6460, 19786), (7610, 16796), (8398, 15220), (8840, 14459), (9880, 12937), (9893, 12920)]