79690000

素因数分解:

$2^4\times 5^4\times {\mathrm{13}}^1\times {\mathrm{613}}^1$

素因数の和:654

約数の個数: 100

約数和(自身を含む): 208117756

約数和(自身を除く): 128427756

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 125, 130, 200, 208, 250, 260, 325, 400, 500, 520, 613, 625, 650, 1000, 1040, 1226, 1250, 1300, 1625, 2000, 2452, 2500, 2600, 3065, 3250, 4904, 5000, 5200, 6130, 6500, 7969, 8125, 9808, 10000, 12260, 13000, 15325, 15938, 16250, 24520, 26000, 30650, 31876, 32500, 39845, 49040, 61300, 63752, 65000, 76625, 79690, 122600, 127504, 130000, 153250, 159380, 199225, 245200, 306500, 318760, 383125, 398450, 613000, 637520, 766250, 796900, 996125, 1226000, 1532500, 1593800, 1992250, 3065000, 3187600, 3984500, 4980625, 6130000, 7969000, 9961250, 15938000, 19922500, 39845000, 79690000]

約数ペア:

[(1, 79690000), (2, 39845000), (4, 19922500), (5, 15938000), (8, 9961250), (10, 7969000), (13, 6130000), (16, 4980625), (20, 3984500), (25, 3187600), (26, 3065000), (40, 1992250), (50, 1593800), (52, 1532500), (65, 1226000), (80, 996125), (100, 796900), (104, 766250), (125, 637520), (130, 613000), (200, 398450), (208, 383125), (250, 318760), (260, 306500), (325, 245200), (400, 199225), (500, 159380), (520, 153250), (613, 130000), (625, 127504), (650, 122600), (1000, 79690), (1040, 76625), (1226, 65000), (1250, 63752), (1300, 61300), (1625, 49040), (2000, 39845), (2452, 32500), (2500, 31876), (2600, 30650), (3065, 26000), (3250, 24520), (4904, 16250), (5000, 15938), (5200, 15325), (6130, 13000), (6500, 12260), (7969, 10000), (8125, 9808)]