68640780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{88001}}^1$

素因数の和:88026

約数の個数: 48

約数和(自身を含む): 206980704

約数和(自身を除く): 138339924

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 88001, 176002, 264003, 352004, 440005, 528006, 880010, 1056012, 1144013, 1320015, 1760020, 2288026, 2640030, 3432039, 4576052, 5280060, 5720065, 6864078, 11440130, 13728156, 17160195, 22880260, 34320390, 68640780]

約数ペア:

[(1, 68640780), (2, 34320390), (3, 22880260), (4, 17160195), (5, 13728156), (6, 11440130), (10, 6864078), (12, 5720065), (13, 5280060), (15, 4576052), (20, 3432039), (26, 2640030), (30, 2288026), (39, 1760020), (52, 1320015), (60, 1144013), (65, 1056012), (78, 880010), (130, 528006), (156, 440005), (195, 352004), (260, 264003), (390, 176002), (780, 88001)]