20221000

素因数分解:

$2^3\times 5^3\times {\mathrm{73}}^1\times {\mathrm{277}}^1$

素因数の和:371

約数の個数: 64

約数和(自身を含む): 48138480

約数和(自身を除く): 27917480

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 73, 100, 125, 146, 200, 250, 277, 292, 365, 500, 554, 584, 730, 1000, 1108, 1385, 1460, 1825, 2216, 2770, 2920, 3650, 5540, 6925, 7300, 9125, 11080, 13850, 14600, 18250, 20221, 27700, 34625, 36500, 40442, 55400, 69250, 73000, 80884, 101105, 138500, 161768, 202210, 277000, 404420, 505525, 808840, 1011050, 2022100, 2527625, 4044200, 5055250, 10110500, 20221000]

約数ペア:

[(1, 20221000), (2, 10110500), (4, 5055250), (5, 4044200), (8, 2527625), (10, 2022100), (20, 1011050), (25, 808840), (40, 505525), (50, 404420), (73, 277000), (100, 202210), (125, 161768), (146, 138500), (200, 101105), (250, 80884), (277, 73000), (292, 69250), (365, 55400), (500, 40442), (554, 36500), (584, 34625), (730, 27700), (1000, 20221), (1108, 18250), (1385, 14600), (1460, 13850), (1825, 11080), (2216, 9125), (2770, 7300), (2920, 6925), (3650, 5540)]