28118650

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{499}}^1$

素因数の和:548

約数の個数: 72

約数和(自身を含む): 63612000

約数和(自身を除く): 35493350

約数列:

[1, 2, 5, 7, 10, 14, 23, 25, 35, 46, 49, 50, 70, 98, 115, 161, 175, 230, 245, 322, 350, 490, 499, 575, 805, 998, 1127, 1150, 1225, 1610, 2254, 2450, 2495, 3493, 4025, 4990, 5635, 6986, 8050, 11270, 11477, 12475, 17465, 22954, 24451, 24950, 28175, 34930, 48902, 56350, 57385, 80339, 87325, 114770, 122255, 160678, 174650, 244510, 286925, 401695, 562373, 573850, 611275, 803390, 1124746, 1222550, 2008475, 2811865, 4016950, 5623730, 14059325, 28118650]

約数ペア:

[(1, 28118650), (2, 14059325), (5, 5623730), (7, 4016950), (10, 2811865), (14, 2008475), (23, 1222550), (25, 1124746), (35, 803390), (46, 611275), (49, 573850), (50, 562373), (70, 401695), (98, 286925), (115, 244510), (161, 174650), (175, 160678), (230, 122255), (245, 114770), (322, 87325), (350, 80339), (490, 57385), (499, 56350), (575, 48902), (805, 34930), (998, 28175), (1127, 24950), (1150, 24451), (1225, 22954), (1610, 17465), (2254, 12475), (2450, 11477), (2495, 11270), (3493, 8050), (4025, 6986), (4990, 5635)]