198430000

素因数分解:

$2^4\times 5^4\times {\mathrm{19843}}^1$

素因数の和:19871

約数の個数: 50

約数和(自身を含む): 480443084

約数和(自身を除く): 282013084

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2500, 5000, 10000, 19843, 39686, 79372, 99215, 158744, 198430, 317488, 396860, 496075, 793720, 992150, 1587440, 1984300, 2480375, 3968600, 4960750, 7937200, 9921500, 12401875, 19843000, 24803750, 39686000, 49607500, 99215000, 198430000]

約数ペア:

[(1, 198430000), (2, 99215000), (4, 49607500), (5, 39686000), (8, 24803750), (10, 19843000), (16, 12401875), (20, 9921500), (25, 7937200), (40, 4960750), (50, 3968600), (80, 2480375), (100, 1984300), (125, 1587440), (200, 992150), (250, 793720), (400, 496075), (500, 396860), (625, 317488), (1000, 198430), (1250, 158744), (2000, 99215), (2500, 79372), (5000, 39686), (10000, 19843)]