81960720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{2689}}^1$

素因数の和:2832

約数の個数: 80

約数和(自身を含む): 256174080

約数和(自身を除く): 174213360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 127, 240, 254, 381, 508, 635, 762, 1016, 1270, 1524, 1905, 2032, 2540, 2689, 3048, 3810, 5080, 5378, 6096, 7620, 8067, 10160, 10756, 13445, 15240, 16134, 21512, 26890, 30480, 32268, 40335, 43024, 53780, 64536, 80670, 107560, 129072, 161340, 215120, 322680, 341503, 645360, 683006, 1024509, 1366012, 1707515, 2049018, 2732024, 3415030, 4098036, 5122545, 5464048, 6830060, 8196072, 10245090, 13660120, 16392144, 20490180, 27320240, 40980360, 81960720]

約数ペア:

[(1, 81960720), (2, 40980360), (3, 27320240), (4, 20490180), (5, 16392144), (6, 13660120), (8, 10245090), (10, 8196072), (12, 6830060), (15, 5464048), (16, 5122545), (20, 4098036), (24, 3415030), (30, 2732024), (40, 2049018), (48, 1707515), (60, 1366012), (80, 1024509), (120, 683006), (127, 645360), (240, 341503), (254, 322680), (381, 215120), (508, 161340), (635, 129072), (762, 107560), (1016, 80670), (1270, 64536), (1524, 53780), (1905, 43024), (2032, 40335), (2540, 32268), (2689, 30480), (3048, 26890), (3810, 21512), (5080, 16134), (5378, 15240), (6096, 13445), (7620, 10756), (8067, 10160)]