51863920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{229}}^1$

素因数の和:410

約数の個数: 80

約数和(自身を含む): 128340000

約数和(自身を除く): 76476080

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 149, 152, 190, 229, 298, 304, 380, 458, 596, 745, 760, 916, 1145, 1192, 1490, 1520, 1832, 2290, 2384, 2831, 2980, 3664, 4351, 4580, 5662, 5960, 8702, 9160, 11324, 11920, 14155, 17404, 18320, 21755, 22648, 28310, 34121, 34808, 43510, 45296, 56620, 68242, 69616, 87020, 113240, 136484, 170605, 174040, 226480, 272968, 341210, 348080, 545936, 648299, 682420, 1296598, 1364840, 2593196, 2729680, 3241495, 5186392, 6482990, 10372784, 12965980, 25931960, 51863920]

約数ペア:

[(1, 51863920), (2, 25931960), (4, 12965980), (5, 10372784), (8, 6482990), (10, 5186392), (16, 3241495), (19, 2729680), (20, 2593196), (38, 1364840), (40, 1296598), (76, 682420), (80, 648299), (95, 545936), (149, 348080), (152, 341210), (190, 272968), (229, 226480), (298, 174040), (304, 170605), (380, 136484), (458, 113240), (596, 87020), (745, 69616), (760, 68242), (916, 56620), (1145, 45296), (1192, 43510), (1490, 34808), (1520, 34121), (1832, 28310), (2290, 22648), (2384, 21755), (2831, 18320), (2980, 17404), (3664, 14155), (4351, 11920), (4580, 11324), (5662, 9160), (5960, 8702)]