21380880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{89087}}^1$

素因数の和:89103

約数の個数: 40

約数和(自身を含む): 66281472

約数和(自身を除く): 44900592

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 89087, 178174, 267261, 356348, 445435, 534522, 712696, 890870, 1069044, 1336305, 1425392, 1781740, 2138088, 2672610, 3563480, 4276176, 5345220, 7126960, 10690440, 21380880]

約数ペア:

[(1, 21380880), (2, 10690440), (3, 7126960), (4, 5345220), (5, 4276176), (6, 3563480), (8, 2672610), (10, 2138088), (12, 1781740), (15, 1425392), (16, 1336305), (20, 1069044), (24, 890870), (30, 712696), (40, 534522), (48, 445435), (60, 356348), (80, 267261), (120, 178174), (240, 89087)]