28902440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{947}}^1$

素因数の和:1074

約数の個数: 64

約数和(自身を含む): 75081600

約数和(自身を除く): 46179160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 109, 140, 218, 280, 436, 545, 763, 872, 947, 1090, 1526, 1894, 2180, 3052, 3788, 3815, 4360, 4735, 6104, 6629, 7576, 7630, 9470, 13258, 15260, 18940, 26516, 30520, 33145, 37880, 53032, 66290, 103223, 132580, 206446, 265160, 412892, 516115, 722561, 825784, 1032230, 1445122, 2064460, 2890244, 3612805, 4128920, 5780488, 7225610, 14451220, 28902440]

約数ペア:

[(1, 28902440), (2, 14451220), (4, 7225610), (5, 5780488), (7, 4128920), (8, 3612805), (10, 2890244), (14, 2064460), (20, 1445122), (28, 1032230), (35, 825784), (40, 722561), (56, 516115), (70, 412892), (109, 265160), (140, 206446), (218, 132580), (280, 103223), (436, 66290), (545, 53032), (763, 37880), (872, 33145), (947, 30520), (1090, 26516), (1526, 18940), (1894, 15260), (2180, 13258), (3052, 9470), (3788, 7630), (3815, 7576), (4360, 6629), (4735, 6104)]