81511140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{563}}^1$

素因数の和:721

約数の個数: 96

約数和(自身を含む): 242565120

約数和(自身を除く): 161053980

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 127, 190, 228, 254, 285, 380, 381, 508, 563, 570, 635, 762, 1126, 1140, 1270, 1524, 1689, 1905, 2252, 2413, 2540, 2815, 3378, 3810, 4826, 5630, 6756, 7239, 7620, 8445, 9652, 10697, 11260, 12065, 14478, 16890, 21394, 24130, 28956, 32091, 33780, 36195, 42788, 48260, 53485, 64182, 71501, 72390, 106970, 128364, 143002, 144780, 160455, 213940, 214503, 286004, 320910, 357505, 429006, 641820, 715010, 858012, 1072515, 1358519, 1430020, 2145030, 2717038, 4075557, 4290060, 5434076, 6792595, 8151114, 13585190, 16302228, 20377785, 27170380, 40755570, 81511140]

約数ペア:

[(1, 81511140), (2, 40755570), (3, 27170380), (4, 20377785), (5, 16302228), (6, 13585190), (10, 8151114), (12, 6792595), (15, 5434076), (19, 4290060), (20, 4075557), (30, 2717038), (38, 2145030), (57, 1430020), (60, 1358519), (76, 1072515), (95, 858012), (114, 715010), (127, 641820), (190, 429006), (228, 357505), (254, 320910), (285, 286004), (380, 214503), (381, 213940), (508, 160455), (563, 144780), (570, 143002), (635, 128364), (762, 106970), (1126, 72390), (1140, 71501), (1270, 64182), (1524, 53485), (1689, 48260), (1905, 42788), (2252, 36195), (2413, 33780), (2540, 32091), (2815, 28956), (3378, 24130), (3810, 21394), (4826, 16890), (5630, 14478), (6756, 12065), (7239, 11260), (7620, 10697), (8445, 9652)]