12855160

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:280

約数の個数: 64

約数和(自身を含む): 30715200

約数和(自身を除く): 17860040

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 89, 92, 115, 157, 178, 184, 230, 314, 356, 445, 460, 628, 712, 785, 890, 920, 1256, 1570, 1780, 2047, 3140, 3560, 3611, 4094, 6280, 7222, 8188, 10235, 13973, 14444, 16376, 18055, 20470, 27946, 28888, 36110, 40940, 55892, 69865, 72220, 81880, 111784, 139730, 144440, 279460, 321379, 558920, 642758, 1285516, 1606895, 2571032, 3213790, 6427580, 12855160]

約数ペア:

[(1, 12855160), (2, 6427580), (4, 3213790), (5, 2571032), (8, 1606895), (10, 1285516), (20, 642758), (23, 558920), (40, 321379), (46, 279460), (89, 144440), (92, 139730), (115, 111784), (157, 81880), (178, 72220), (184, 69865), (230, 55892), (314, 40940), (356, 36110), (445, 28888), (460, 27946), (628, 20470), (712, 18055), (785, 16376), (890, 14444), (920, 13973), (1256, 10235), (1570, 8188), (1780, 7222), (2047, 6280), (3140, 4094), (3560, 3611)]