40840000

素因数分解:

$2^6\times 5^4\times {\mathrm{1021}}^1$

素因数の和:1053

約数の個数: 70

約数和(自身を含む): 101369114

約数和(自身を除く): 60529114

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 200, 250, 320, 400, 500, 625, 800, 1000, 1021, 1250, 1600, 2000, 2042, 2500, 4000, 4084, 5000, 5105, 8000, 8168, 10000, 10210, 16336, 20000, 20420, 25525, 32672, 40000, 40840, 51050, 65344, 81680, 102100, 127625, 163360, 204200, 255250, 326720, 408400, 510500, 638125, 816800, 1021000, 1276250, 1633600, 2042000, 2552500, 4084000, 5105000, 8168000, 10210000, 20420000, 40840000]

約数ペア:

[(1, 40840000), (2, 20420000), (4, 10210000), (5, 8168000), (8, 5105000), (10, 4084000), (16, 2552500), (20, 2042000), (25, 1633600), (32, 1276250), (40, 1021000), (50, 816800), (64, 638125), (80, 510500), (100, 408400), (125, 326720), (160, 255250), (200, 204200), (250, 163360), (320, 127625), (400, 102100), (500, 81680), (625, 65344), (800, 51050), (1000, 40840), (1021, 40000), (1250, 32672), (1600, 25525), (2000, 20420), (2042, 20000), (2500, 16336), (4000, 10210), (4084, 10000), (5000, 8168), (5105, 8000)]