1655680

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1$

素因数の和:231

約数の個数: 64

約数和(自身を含む): 4284000

約数和(自身を除く): 2628320

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 199, 208, 260, 320, 398, 416, 520, 640, 796, 832, 995, 1040, 1592, 1664, 1990, 2080, 2587, 3184, 3980, 4160, 5174, 6368, 7960, 8320, 10348, 12736, 12935, 15920, 20696, 25472, 25870, 31840, 41392, 51740, 63680, 82784, 103480, 127360, 165568, 206960, 331136, 413920, 827840, 1655680]

約数ペア:

[(1, 1655680), (2, 827840), (4, 413920), (5, 331136), (8, 206960), (10, 165568), (13, 127360), (16, 103480), (20, 82784), (26, 63680), (32, 51740), (40, 41392), (52, 31840), (64, 25870), (65, 25472), (80, 20696), (104, 15920), (128, 12935), (130, 12736), (160, 10348), (199, 8320), (208, 7960), (260, 6368), (320, 5174), (398, 4160), (416, 3980), (520, 3184), (640, 2587), (796, 2080), (832, 1990), (995, 1664), (1040, 1592)]