31160380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1907}}^1$

素因数の和:1978

約数の個数: 48

約数和(自身を含む): 70519680

約数和(自身を除く): 39359300

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 76, 86, 95, 172, 190, 215, 380, 430, 817, 860, 1634, 1907, 3268, 3814, 4085, 7628, 8170, 9535, 16340, 19070, 36233, 38140, 72466, 82001, 144932, 164002, 181165, 328004, 362330, 410005, 724660, 820010, 1558019, 1640020, 3116038, 6232076, 7790095, 15580190, 31160380]

約数ペア:

[(1, 31160380), (2, 15580190), (4, 7790095), (5, 6232076), (10, 3116038), (19, 1640020), (20, 1558019), (38, 820010), (43, 724660), (76, 410005), (86, 362330), (95, 328004), (172, 181165), (190, 164002), (215, 144932), (380, 82001), (430, 72466), (817, 38140), (860, 36233), (1634, 19070), (1907, 16340), (3268, 9535), (3814, 8170), (4085, 7628)]