81387360

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{56519}}^1$

素因数の和:56540

約数の個数: 72

約数和(自身を含む): 277739280

約数和(自身を除く): 196351920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 56519, 113038, 169557, 226076, 282595, 339114, 452152, 508671, 565190, 678228, 847785, 904304, 1017342, 1130380, 1356456, 1695570, 1808608, 2034684, 2260760, 2543355, 2712912, 3391140, 4069368, 4521520, 5086710, 5425824, 6782280, 8138736, 9043040, 10173420, 13564560, 16277472, 20346840, 27129120, 40693680, 81387360]

約数ペア:

[(1, 81387360), (2, 40693680), (3, 27129120), (4, 20346840), (5, 16277472), (6, 13564560), (8, 10173420), (9, 9043040), (10, 8138736), (12, 6782280), (15, 5425824), (16, 5086710), (18, 4521520), (20, 4069368), (24, 3391140), (30, 2712912), (32, 2543355), (36, 2260760), (40, 2034684), (45, 1808608), (48, 1695570), (60, 1356456), (72, 1130380), (80, 1017342), (90, 904304), (96, 847785), (120, 678228), (144, 565190), (160, 508671), (180, 452152), (240, 339114), (288, 282595), (360, 226076), (480, 169557), (720, 113038), (1440, 56519)]