2155558140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{223}}^1\times {\mathrm{647}}^1$

素因数の和:968

約数の個数: 144

約数和(自身を含む): 6657251328

約数和(自身を除く): 4501693188

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 83, 90, 166, 180, 223, 249, 332, 415, 446, 498, 647, 669, 747, 830, 892, 996, 1115, 1245, 1294, 1338, 1494, 1660, 1941, 2007, 2230, 2490, 2588, 2676, 2988, 3235, 3345, 3735, 3882, 4014, 4460, 4980, 5823, 6470, 6690, 7470, 7764, 8028, 9705, 10035, 11646, 12940, 13380, 14940, 18509, 19410, 20070, 23292, 29115, 37018, 38820, 40140, 53701, 55527, 58230, 74036, 92545, 107402, 111054, 116460, 144281, 161103, 166581, 185090, 214804, 222108, 268505, 277635, 288562, 322206, 333162, 370180, 432843, 483309, 537010, 555270, 577124, 644412, 666324, 721405, 805515, 832905, 865686, 966618, 1074020, 1110540, 1298529, 1442810, 1611030, 1665810, 1731372, 1933236, 2164215, 2416545, 2597058, 2885620, 3222060, 3331620, 4328430, 4833090, 5194116, 6492645, 8656860, 9666180, 11975323, 12985290, 23950646, 25970580, 35925969, 47901292, 59876615, 71851938, 107777907, 119753230, 143703876, 179629845, 215555814, 239506460, 359259690, 431111628, 538889535, 718519380, 1077779070, 2155558140]

約数ペア:

[(1, 2155558140), (2, 1077779070), (3, 718519380), (4, 538889535), (5, 431111628), (6, 359259690), (9, 239506460), (10, 215555814), (12, 179629845), (15, 143703876), (18, 119753230), (20, 107777907), (30, 71851938), (36, 59876615), (45, 47901292), (60, 35925969), (83, 25970580), (90, 23950646), (166, 12985290), (180, 11975323), (223, 9666180), (249, 8656860), (332, 6492645), (415, 5194116), (446, 4833090), (498, 4328430), (647, 3331620), (669, 3222060), (747, 2885620), (830, 2597058), (892, 2416545), (996, 2164215), (1115, 1933236), (1245, 1731372), (1294, 1665810), (1338, 1611030), (1494, 1442810), (1660, 1298529), (1941, 1110540), (2007, 1074020), (2230, 966618), (2490, 865686), (2588, 832905), (2676, 805515), (2988, 721405), (3235, 666324), (3345, 644412), (3735, 577124), (3882, 555270), (4014, 537010), (4460, 483309), (4980, 432843), (5823, 370180), (6470, 333162), (6690, 322206), (7470, 288562), (7764, 277635), (8028, 268505), (9705, 222108), (10035, 214804), (11646, 185090), (12940, 166581), (13380, 161103), (14940, 144281), (18509, 116460), (19410, 111054), (20070, 107402), (23292, 92545), (29115, 74036), (37018, 58230), (38820, 55527), (40140, 53701)]