21977640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1489}}^1$

素因数の和:1547

約数の個数: 96

約数和(自身を含む): 73218600

約数和(自身を除く): 51240960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 41, 45, 60, 72, 82, 90, 120, 123, 164, 180, 205, 246, 328, 360, 369, 410, 492, 615, 738, 820, 984, 1230, 1476, 1489, 1640, 1845, 2460, 2952, 2978, 3690, 4467, 4920, 5956, 7380, 7445, 8934, 11912, 13401, 14760, 14890, 17868, 22335, 26802, 29780, 35736, 44670, 53604, 59560, 61049, 67005, 89340, 107208, 122098, 134010, 178680, 183147, 244196, 268020, 305245, 366294, 488392, 536040, 549441, 610490, 732588, 915735, 1098882, 1220980, 1465176, 1831470, 2197764, 2441960, 2747205, 3662940, 4395528, 5494410, 7325880, 10988820, 21977640]

約数ペア:

[(1, 21977640), (2, 10988820), (3, 7325880), (4, 5494410), (5, 4395528), (6, 3662940), (8, 2747205), (9, 2441960), (10, 2197764), (12, 1831470), (15, 1465176), (18, 1220980), (20, 1098882), (24, 915735), (30, 732588), (36, 610490), (40, 549441), (41, 536040), (45, 488392), (60, 366294), (72, 305245), (82, 268020), (90, 244196), (120, 183147), (123, 178680), (164, 134010), (180, 122098), (205, 107208), (246, 89340), (328, 67005), (360, 61049), (369, 59560), (410, 53604), (492, 44670), (615, 35736), (738, 29780), (820, 26802), (984, 22335), (1230, 17868), (1476, 14890), (1489, 14760), (1640, 13401), (1845, 11912), (2460, 8934), (2952, 7445), (2978, 7380), (3690, 5956), (4467, 4920)]