77879720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{6737}}^1$

素因数の和:6782

約数の個数: 48

約数和(自身を含む): 186170940

約数和(自身を除く): 108291220

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 289, 340, 578, 680, 1156, 1445, 2312, 2890, 5780, 6737, 11560, 13474, 26948, 33685, 53896, 67370, 114529, 134740, 229058, 269480, 458116, 572645, 916232, 1145290, 1946993, 2290580, 3893986, 4581160, 7787972, 9734965, 15575944, 19469930, 38939860, 77879720]

約数ペア:

[(1, 77879720), (2, 38939860), (4, 19469930), (5, 15575944), (8, 9734965), (10, 7787972), (17, 4581160), (20, 3893986), (34, 2290580), (40, 1946993), (68, 1145290), (85, 916232), (136, 572645), (170, 458116), (289, 269480), (340, 229058), (578, 134740), (680, 114529), (1156, 67370), (1445, 53896), (2312, 33685), (2890, 26948), (5780, 13474), (6737, 11560)]