80021900

素因数分解:

$2^2\times 5^2\times 7^3\times {\mathrm{2333}}^1$

素因数の和:2368

約数の個数: 72

約数和(自身を含む): 202591200

約数和(自身を除く): 122569300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 343, 350, 490, 686, 700, 980, 1225, 1372, 1715, 2333, 2450, 3430, 4666, 4900, 6860, 8575, 9332, 11665, 16331, 17150, 23330, 32662, 34300, 46660, 58325, 65324, 81655, 114317, 116650, 163310, 228634, 233300, 326620, 408275, 457268, 571585, 800219, 816550, 1143170, 1600438, 1633100, 2286340, 2857925, 3200876, 4001095, 5715850, 8002190, 11431700, 16004380, 20005475, 40010950, 80021900]

約数ペア:

[(1, 80021900), (2, 40010950), (4, 20005475), (5, 16004380), (7, 11431700), (10, 8002190), (14, 5715850), (20, 4001095), (25, 3200876), (28, 2857925), (35, 2286340), (49, 1633100), (50, 1600438), (70, 1143170), (98, 816550), (100, 800219), (140, 571585), (175, 457268), (196, 408275), (245, 326620), (343, 233300), (350, 228634), (490, 163310), (686, 116650), (700, 114317), (980, 81655), (1225, 65324), (1372, 58325), (1715, 46660), (2333, 34300), (2450, 32662), (3430, 23330), (4666, 17150), (4900, 16331), (6860, 11665), (8575, 9332)]