12807560

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1$

素因数の和:282

約数の個数: 64

約数和(自身を含む): 30466800

約数和(自身を除く): 17659240

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 61, 116, 122, 145, 181, 232, 244, 290, 305, 362, 488, 580, 610, 724, 905, 1160, 1220, 1448, 1769, 1810, 2440, 3538, 3620, 5249, 7076, 7240, 8845, 10498, 11041, 14152, 17690, 20996, 22082, 26245, 35380, 41992, 44164, 52490, 55205, 70760, 88328, 104980, 110410, 209960, 220820, 320189, 441640, 640378, 1280756, 1600945, 2561512, 3201890, 6403780, 12807560]

約数ペア:

[(1, 12807560), (2, 6403780), (4, 3201890), (5, 2561512), (8, 1600945), (10, 1280756), (20, 640378), (29, 441640), (40, 320189), (58, 220820), (61, 209960), (116, 110410), (122, 104980), (145, 88328), (181, 70760), (232, 55205), (244, 52490), (290, 44164), (305, 41992), (362, 35380), (488, 26245), (580, 22082), (610, 20996), (724, 17690), (905, 14152), (1160, 11041), (1220, 10498), (1448, 8845), (1769, 7240), (1810, 7076), (2440, 5249), (3538, 3620)]