28865880

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{443}}^1$

素因数の和:641

約数の個数: 96

約数和(自身を含む): 94545360

約数和(自身を除く): 65679480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 181, 360, 362, 443, 543, 724, 886, 905, 1086, 1329, 1448, 1629, 1772, 1810, 2172, 2215, 2658, 2715, 3258, 3544, 3620, 3987, 4344, 4430, 5316, 5430, 6516, 6645, 7240, 7974, 8145, 8860, 10632, 10860, 13032, 13290, 15948, 16290, 17720, 19935, 21720, 26580, 31896, 32580, 39870, 53160, 65160, 79740, 80183, 159480, 160366, 240549, 320732, 400915, 481098, 641464, 721647, 801830, 962196, 1202745, 1443294, 1603660, 1924392, 2405490, 2886588, 3207320, 3608235, 4810980, 5773176, 7216470, 9621960, 14432940, 28865880]

約数ペア:

[(1, 28865880), (2, 14432940), (3, 9621960), (4, 7216470), (5, 5773176), (6, 4810980), (8, 3608235), (9, 3207320), (10, 2886588), (12, 2405490), (15, 1924392), (18, 1603660), (20, 1443294), (24, 1202745), (30, 962196), (36, 801830), (40, 721647), (45, 641464), (60, 481098), (72, 400915), (90, 320732), (120, 240549), (180, 160366), (181, 159480), (360, 80183), (362, 79740), (443, 65160), (543, 53160), (724, 39870), (886, 32580), (905, 31896), (1086, 26580), (1329, 21720), (1448, 19935), (1629, 17720), (1772, 16290), (1810, 15948), (2172, 13290), (2215, 13032), (2658, 10860), (2715, 10632), (3258, 8860), (3544, 8145), (3620, 7974), (3987, 7240), (4344, 6645), (4430, 6516), (5316, 5430)]