28154340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2203}}^1$

素因数の和:2289

約数の個数: 72

約数和(自身を含む): 86643648

約数和(自身を除く): 58489308

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 2130, 2203, 2556, 3195, 4260, 4406, 6390, 6609, 8812, 11015, 12780, 13218, 19827, 22030, 26436, 33045, 39654, 44060, 66090, 79308, 99135, 132180, 156413, 198270, 312826, 396540, 469239, 625652, 782065, 938478, 1407717, 1564130, 1876956, 2346195, 2815434, 3128260, 4692390, 5630868, 7038585, 9384780, 14077170, 28154340]

約数ペア:

[(1, 28154340), (2, 14077170), (3, 9384780), (4, 7038585), (5, 5630868), (6, 4692390), (9, 3128260), (10, 2815434), (12, 2346195), (15, 1876956), (18, 1564130), (20, 1407717), (30, 938478), (36, 782065), (45, 625652), (60, 469239), (71, 396540), (90, 312826), (142, 198270), (180, 156413), (213, 132180), (284, 99135), (355, 79308), (426, 66090), (639, 44060), (710, 39654), (852, 33045), (1065, 26436), (1278, 22030), (1420, 19827), (2130, 13218), (2203, 12780), (2556, 11015), (3195, 8812), (4260, 6609), (4406, 6390)]