20417490

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2549}}^1$

素因数の和:2651

約数の個数: 48

約数和(自身を含む): 53703000

約数和(自身を除く): 33285510

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 89, 90, 178, 267, 445, 534, 801, 890, 1335, 1602, 2549, 2670, 4005, 5098, 7647, 8010, 12745, 15294, 22941, 25490, 38235, 45882, 76470, 114705, 226861, 229410, 453722, 680583, 1134305, 1361166, 2041749, 2268610, 3402915, 4083498, 6805830, 10208745, 20417490]

約数ペア:

[(1, 20417490), (2, 10208745), (3, 6805830), (5, 4083498), (6, 3402915), (9, 2268610), (10, 2041749), (15, 1361166), (18, 1134305), (30, 680583), (45, 453722), (89, 229410), (90, 226861), (178, 114705), (267, 76470), (445, 45882), (534, 38235), (801, 25490), (890, 22941), (1335, 15294), (1602, 12745), (2549, 8010), (2670, 7647), (4005, 5098)]