97810000

素因数分解:

$2^4\times 5^4\times {\mathrm{9781}}^1$

素因数の和:9809

約数の個数: 50

約数和(自身を含む): 236832002

約数和(自身を除く): 139022002

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, 9781, 10000, 19562, 39124, 48905, 78248, 97810, 156496, 195620, 244525, 391240, 489050, 782480, 978100, 1222625, 1956200, 2445250, 3912400, 4890500, 6113125, 9781000, 12226250, 19562000, 24452500, 48905000, 97810000]

約数ペア:

[(1, 97810000), (2, 48905000), (4, 24452500), (5, 19562000), (8, 12226250), (10, 9781000), (16, 6113125), (20, 4890500), (25, 3912400), (40, 2445250), (50, 1956200), (80, 1222625), (100, 978100), (125, 782480), (200, 489050), (250, 391240), (400, 244525), (500, 195620), (625, 156496), (1000, 97810), (1250, 78248), (2000, 48905), (2500, 39124), (5000, 19562), (9781, 10000)]