25615120

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1$

素因数の和:284

約数の個数: 80

約数和(自身を含む): 62964720

約数和(自身を除く): 37349600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 61, 80, 116, 122, 145, 181, 232, 244, 290, 305, 362, 464, 488, 580, 610, 724, 905, 976, 1160, 1220, 1448, 1769, 1810, 2320, 2440, 2896, 3538, 3620, 4880, 5249, 7076, 7240, 8845, 10498, 11041, 14152, 14480, 17690, 20996, 22082, 26245, 28304, 35380, 41992, 44164, 52490, 55205, 70760, 83984, 88328, 104980, 110410, 141520, 176656, 209960, 220820, 320189, 419920, 441640, 640378, 883280, 1280756, 1600945, 2561512, 3201890, 5123024, 6403780, 12807560, 25615120]

約数ペア:

[(1, 25615120), (2, 12807560), (4, 6403780), (5, 5123024), (8, 3201890), (10, 2561512), (16, 1600945), (20, 1280756), (29, 883280), (40, 640378), (58, 441640), (61, 419920), (80, 320189), (116, 220820), (122, 209960), (145, 176656), (181, 141520), (232, 110410), (244, 104980), (290, 88328), (305, 83984), (362, 70760), (464, 55205), (488, 52490), (580, 44164), (610, 41992), (724, 35380), (905, 28304), (976, 26245), (1160, 22082), (1220, 20996), (1448, 17690), (1769, 14480), (1810, 14152), (2320, 11041), (2440, 10498), (2896, 8845), (3538, 7240), (3620, 7076), (4880, 5249)]