31870980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{9319}}^1$

素因数の和:9353

約数の個数: 72

約数和(自身を含む): 101774400

約数和(自身を除く): 69903420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 9319, 18638, 27957, 37276, 46595, 55914, 83871, 93190, 111828, 139785, 167742, 177061, 186380, 279570, 335484, 354122, 419355, 531183, 559140, 708244, 838710, 885305, 1062366, 1593549, 1677420, 1770610, 2124732, 2655915, 3187098, 3541220, 5311830, 6374196, 7967745, 10623660, 15935490, 31870980]

約数ペア:

[(1, 31870980), (2, 15935490), (3, 10623660), (4, 7967745), (5, 6374196), (6, 5311830), (9, 3541220), (10, 3187098), (12, 2655915), (15, 2124732), (18, 1770610), (19, 1677420), (20, 1593549), (30, 1062366), (36, 885305), (38, 838710), (45, 708244), (57, 559140), (60, 531183), (76, 419355), (90, 354122), (95, 335484), (114, 279570), (171, 186380), (180, 177061), (190, 167742), (228, 139785), (285, 111828), (342, 93190), (380, 83871), (570, 55914), (684, 46595), (855, 37276), (1140, 27957), (1710, 18638), (3420, 9319)]