28873000

素因数分解:

$2^3\times 5^3\times {\mathrm{13}}^1\times {\mathrm{2221}}^1$

素因数の和:2255

約数の個数: 64

約数和(自身を含む): 72792720

約数和(自身を除く): 43919720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 125, 130, 200, 250, 260, 325, 500, 520, 650, 1000, 1300, 1625, 2221, 2600, 3250, 4442, 6500, 8884, 11105, 13000, 17768, 22210, 28873, 44420, 55525, 57746, 88840, 111050, 115492, 144365, 222100, 230984, 277625, 288730, 444200, 555250, 577460, 721825, 1110500, 1154920, 1443650, 2221000, 2887300, 3609125, 5774600, 7218250, 14436500, 28873000]

約数ペア:

[(1, 28873000), (2, 14436500), (4, 7218250), (5, 5774600), (8, 3609125), (10, 2887300), (13, 2221000), (20, 1443650), (25, 1154920), (26, 1110500), (40, 721825), (50, 577460), (52, 555250), (65, 444200), (100, 288730), (104, 277625), (125, 230984), (130, 222100), (200, 144365), (250, 115492), (260, 111050), (325, 88840), (500, 57746), (520, 55525), (650, 44420), (1000, 28873), (1300, 22210), (1625, 17768), (2221, 13000), (2600, 11105), (3250, 8884), (4442, 6500)]