28908090

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{401}}^1$

素因数の和:509

約数の個数: 80

約数和(自身を含む): 78800040

約数和(自身を除く): 49891950

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 89, 90, 135, 162, 178, 267, 270, 401, 405, 445, 534, 801, 802, 810, 890, 1203, 1335, 1602, 2005, 2403, 2406, 2670, 3609, 4005, 4010, 4806, 6015, 7209, 7218, 8010, 10827, 12015, 12030, 14418, 18045, 21654, 24030, 32481, 35689, 36045, 36090, 54135, 64962, 71378, 72090, 107067, 108270, 162405, 178445, 214134, 321201, 324810, 356890, 535335, 642402, 963603, 1070670, 1606005, 1927206, 2890809, 3212010, 4818015, 5781618, 9636030, 14454045, 28908090]

約数ペア:

[(1, 28908090), (2, 14454045), (3, 9636030), (5, 5781618), (6, 4818015), (9, 3212010), (10, 2890809), (15, 1927206), (18, 1606005), (27, 1070670), (30, 963603), (45, 642402), (54, 535335), (81, 356890), (89, 324810), (90, 321201), (135, 214134), (162, 178445), (178, 162405), (267, 108270), (270, 107067), (401, 72090), (405, 71378), (445, 64962), (534, 54135), (801, 36090), (802, 36045), (810, 35689), (890, 32481), (1203, 24030), (1335, 21654), (1602, 18045), (2005, 14418), (2403, 12030), (2406, 12015), (2670, 10827), (3609, 8010), (4005, 7218), (4010, 7209), (4806, 6015)]