97780000

素因数分解:

$2^5\times 5^4\times {\mathrm{4889}}^1$

素因数の和:4919

約数の個数: 60

約数和(自身を含む): 240602670

約数和(自身を除く): 142822670

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 625, 800, 1000, 1250, 2000, 2500, 4000, 4889, 5000, 9778, 10000, 19556, 20000, 24445, 39112, 48890, 78224, 97780, 122225, 156448, 195560, 244450, 391120, 488900, 611125, 782240, 977800, 1222250, 1955600, 2444500, 3055625, 3911200, 4889000, 6111250, 9778000, 12222500, 19556000, 24445000, 48890000, 97780000]

約数ペア:

[(1, 97780000), (2, 48890000), (4, 24445000), (5, 19556000), (8, 12222500), (10, 9778000), (16, 6111250), (20, 4889000), (25, 3911200), (32, 3055625), (40, 2444500), (50, 1955600), (80, 1222250), (100, 977800), (125, 782240), (160, 611125), (200, 488900), (250, 391120), (400, 244450), (500, 195560), (625, 156448), (800, 122225), (1000, 97780), (1250, 78224), (2000, 48890), (2500, 39112), (4000, 24445), (4889, 20000), (5000, 19556), (9778, 10000)]