31715940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{647}}^1$

素因数の和:721

約数の個数: 96

約数和(自身を含む): 95800320

約数和(自身を除く): 64084380

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 43, 57, 60, 76, 86, 95, 114, 129, 172, 190, 215, 228, 258, 285, 380, 430, 516, 570, 645, 647, 817, 860, 1140, 1290, 1294, 1634, 1941, 2451, 2580, 2588, 3235, 3268, 3882, 4085, 4902, 6470, 7764, 8170, 9705, 9804, 12255, 12293, 12940, 16340, 19410, 24510, 24586, 27821, 36879, 38820, 49020, 49172, 55642, 61465, 73758, 83463, 111284, 122930, 139105, 147516, 166926, 184395, 245860, 278210, 333852, 368790, 417315, 528599, 556420, 737580, 834630, 1057198, 1585797, 1669260, 2114396, 2642995, 3171594, 5285990, 6343188, 7928985, 10571980, 15857970, 31715940]

約数ペア:

[(1, 31715940), (2, 15857970), (3, 10571980), (4, 7928985), (5, 6343188), (6, 5285990), (10, 3171594), (12, 2642995), (15, 2114396), (19, 1669260), (20, 1585797), (30, 1057198), (38, 834630), (43, 737580), (57, 556420), (60, 528599), (76, 417315), (86, 368790), (95, 333852), (114, 278210), (129, 245860), (172, 184395), (190, 166926), (215, 147516), (228, 139105), (258, 122930), (285, 111284), (380, 83463), (430, 73758), (516, 61465), (570, 55642), (645, 49172), (647, 49020), (817, 38820), (860, 36879), (1140, 27821), (1290, 24586), (1294, 24510), (1634, 19410), (1941, 16340), (2451, 12940), (2580, 12293), (2588, 12255), (3235, 9804), (3268, 9705), (3882, 8170), (4085, 7764), (4902, 6470)]