25986220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1123}}^1$

素因数の和:1234

約数の個数: 48

約数和(自身を含む): 59482080

約数和(自身を除く): 33495860

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 89, 130, 178, 260, 356, 445, 890, 1123, 1157, 1780, 2246, 2314, 4492, 4628, 5615, 5785, 11230, 11570, 14599, 22460, 23140, 29198, 58396, 72995, 99947, 145990, 199894, 291980, 399788, 499735, 999470, 1299311, 1998940, 2598622, 5197244, 6496555, 12993110, 25986220]

約数ペア:

[(1, 25986220), (2, 12993110), (4, 6496555), (5, 5197244), (10, 2598622), (13, 1998940), (20, 1299311), (26, 999470), (52, 499735), (65, 399788), (89, 291980), (130, 199894), (178, 145990), (260, 99947), (356, 72995), (445, 58396), (890, 29198), (1123, 23140), (1157, 22460), (1780, 14599), (2246, 11570), (2314, 11230), (4492, 5785), (4628, 5615)]