7969000

素因数分解:

$2^3\times 5^3\times {\mathrm{13}}^1\times {\mathrm{613}}^1$

素因数の和:647

約数の個数: 64

約数和(自身を含む): 20114640

約数和(自身を除く): 12145640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 125, 130, 200, 250, 260, 325, 500, 520, 613, 650, 1000, 1226, 1300, 1625, 2452, 2600, 3065, 3250, 4904, 6130, 6500, 7969, 12260, 13000, 15325, 15938, 24520, 30650, 31876, 39845, 61300, 63752, 76625, 79690, 122600, 153250, 159380, 199225, 306500, 318760, 398450, 613000, 796900, 996125, 1593800, 1992250, 3984500, 7969000]

約数ペア:

[(1, 7969000), (2, 3984500), (4, 1992250), (5, 1593800), (8, 996125), (10, 796900), (13, 613000), (20, 398450), (25, 318760), (26, 306500), (40, 199225), (50, 159380), (52, 153250), (65, 122600), (100, 79690), (104, 76625), (125, 63752), (130, 61300), (200, 39845), (250, 31876), (260, 30650), (325, 24520), (500, 15938), (520, 15325), (613, 13000), (650, 12260), (1000, 7969), (1226, 6500), (1300, 6130), (1625, 4904), (2452, 3250), (2600, 3065)]