131078720

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{21559}}^1$

素因数の和:21595

約数の個数: 56

約数和(自身を含む): 328574400

約数和(自身を除く): 197495680

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 152, 160, 190, 304, 320, 380, 608, 760, 1216, 1520, 3040, 6080, 21559, 43118, 86236, 107795, 172472, 215590, 344944, 409621, 431180, 689888, 819242, 862360, 1379776, 1638484, 1724720, 2048105, 3276968, 3449440, 4096210, 6553936, 6898880, 8192420, 13107872, 16384840, 26215744, 32769680, 65539360, 131078720]

約数ペア:

[(1, 131078720), (2, 65539360), (4, 32769680), (5, 26215744), (8, 16384840), (10, 13107872), (16, 8192420), (19, 6898880), (20, 6553936), (32, 4096210), (38, 3449440), (40, 3276968), (64, 2048105), (76, 1724720), (80, 1638484), (95, 1379776), (152, 862360), (160, 819242), (190, 689888), (304, 431180), (320, 409621), (380, 344944), (608, 215590), (760, 172472), (1216, 107795), (1520, 86236), (3040, 43118), (6080, 21559)]