686417680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{9851}}^1$

素因数の和:9944

約数の個数: 80

約数和(自身を含む): 1744513344

約数和(自身を除く): 1058095664

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 67, 80, 104, 130, 134, 208, 260, 268, 335, 520, 536, 670, 871, 1040, 1072, 1340, 1742, 2680, 3484, 4355, 5360, 6968, 8710, 9851, 13936, 17420, 19702, 34840, 39404, 49255, 69680, 78808, 98510, 128063, 157616, 197020, 256126, 394040, 512252, 640315, 660017, 788080, 1024504, 1280630, 1320034, 2049008, 2561260, 2640068, 3300085, 5122520, 5280136, 6600170, 8580221, 10245040, 10560272, 13200340, 17160442, 26400680, 34320884, 42901105, 52801360, 68641768, 85802210, 137283536, 171604420, 343208840, 686417680]

約数ペア:

[(1, 686417680), (2, 343208840), (4, 171604420), (5, 137283536), (8, 85802210), (10, 68641768), (13, 52801360), (16, 42901105), (20, 34320884), (26, 26400680), (40, 17160442), (52, 13200340), (65, 10560272), (67, 10245040), (80, 8580221), (104, 6600170), (130, 5280136), (134, 5122520), (208, 3300085), (260, 2640068), (268, 2561260), (335, 2049008), (520, 1320034), (536, 1280630), (670, 1024504), (871, 788080), (1040, 660017), (1072, 640315), (1340, 512252), (1742, 394040), (2680, 256126), (3484, 197020), (4355, 157616), (5360, 128063), (6968, 98510), (8710, 78808), (9851, 69680), (13936, 49255), (17420, 39404), (19702, 34840)]