9770000

素因数分解:

$2^4\times 5^4\times {\mathrm{977}}^1$

素因数の和:1005

約数の個数: 50

約数和(自身を含む): 23678358

約数和(自身を除く): 13908358

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 977, 1000, 1250, 1954, 2000, 2500, 3908, 4885, 5000, 7816, 9770, 10000, 15632, 19540, 24425, 39080, 48850, 78160, 97700, 122125, 195400, 244250, 390800, 488500, 610625, 977000, 1221250, 1954000, 2442500, 4885000, 9770000]

約数ペア:

[(1, 9770000), (2, 4885000), (4, 2442500), (5, 1954000), (8, 1221250), (10, 977000), (16, 610625), (20, 488500), (25, 390800), (40, 244250), (50, 195400), (80, 122125), (100, 97700), (125, 78160), (200, 48850), (250, 39080), (400, 24425), (500, 19540), (625, 15632), (977, 10000), (1000, 9770), (1250, 7816), (1954, 5000), (2000, 4885), (2500, 3908)]