49090000

素因数分解:

$2^4\times 5^4\times {\mathrm{4909}}^1$

素因数の和:4937

約数の個数: 50

約数和(自身を含む): 118876010

約数和(自身を除く): 69786010

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, 4909, 5000, 9818, 10000, 19636, 24545, 39272, 49090, 78544, 98180, 122725, 196360, 245450, 392720, 490900, 613625, 981800, 1227250, 1963600, 2454500, 3068125, 4909000, 6136250, 9818000, 12272500, 24545000, 49090000]

約数ペア:

[(1, 49090000), (2, 24545000), (4, 12272500), (5, 9818000), (8, 6136250), (10, 4909000), (16, 3068125), (20, 2454500), (25, 1963600), (40, 1227250), (50, 981800), (80, 613625), (100, 490900), (125, 392720), (200, 245450), (250, 196360), (400, 122725), (500, 98180), (625, 78544), (1000, 49090), (1250, 39272), (2000, 24545), (2500, 19636), (4909, 10000), (5000, 9818)]