123661780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{541}}^1\times {\mathrm{1039}}^1$

素因数の和:1600

約数の個数: 48

約数和(自身を含む): 284094720

約数和(自身を除く): 160432940

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 541, 1039, 1082, 2078, 2164, 2705, 4156, 5195, 5410, 5951, 10390, 10820, 11429, 11902, 20780, 22858, 23804, 29755, 45716, 57145, 59510, 114290, 119020, 228580, 562099, 1124198, 2248396, 2810495, 5620990, 6183089, 11241980, 12366178, 24732356, 30915445, 61830890, 123661780]

約数ペア:

[(1, 123661780), (2, 61830890), (4, 30915445), (5, 24732356), (10, 12366178), (11, 11241980), (20, 6183089), (22, 5620990), (44, 2810495), (55, 2248396), (110, 1124198), (220, 562099), (541, 228580), (1039, 119020), (1082, 114290), (2078, 59510), (2164, 57145), (2705, 45716), (4156, 29755), (5195, 23804), (5410, 22858), (5951, 20780), (10390, 11902), (10820, 11429)]