20970090

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{25889}}^1$

素因数の和:25908

約数の個数: 40

約数和(自身を含む): 56388420

約数和(自身を除く): 35418330

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810, 25889, 51778, 77667, 129445, 155334, 233001, 258890, 388335, 466002, 699003, 776670, 1165005, 1398006, 2097009, 2330010, 3495015, 4194018, 6990030, 10485045, 20970090]

約数ペア:

[(1, 20970090), (2, 10485045), (3, 6990030), (5, 4194018), (6, 3495015), (9, 2330010), (10, 2097009), (15, 1398006), (18, 1165005), (27, 776670), (30, 699003), (45, 466002), (54, 388335), (81, 258890), (90, 233001), (135, 155334), (162, 129445), (270, 77667), (405, 51778), (810, 25889)]