12940647501580

素因数分解:

$2^2\times 5^1\times {\mathrm{431}}^1\times {\mathrm{4013}}^1\times {\mathrm{374093}}^1$

素因数の和:378546

約数の個数: 48

約数和(自身を含む): 27245272005504

約数和(自身を除く): 14304624503924

約数列:

[1, 2, 4, 5, 10, 20, 431, 862, 1724, 2155, 4013, 4310, 8026, 8620, 16052, 20065, 40130, 80260, 374093, 748186, 1496372, 1729603, 1870465, 3459206, 3740930, 6918412, 7481860, 8648015, 17296030, 34592060, 161234083, 322468166, 644936332, 806170415, 1501235209, 1612340830, 3002470418, 3224681660, 6004940836, 7506176045, 15012352090, 30024704180, 647032375079, 1294064750158, 2588129500316, 3235161875395, 6470323750790, 12940647501580]

約数ペア:

[(1, 12940647501580), (2, 6470323750790), (4, 3235161875395), (5, 2588129500316), (10, 1294064750158), (20, 647032375079), (431, 30024704180), (862, 15012352090), (1724, 7506176045), (2155, 6004940836), (4013, 3224681660), (4310, 3002470418), (8026, 1612340830), (8620, 1501235209), (16052, 806170415), (20065, 644936332), (40130, 322468166), (80260, 161234083), (374093, 34592060), (748186, 17296030), (1496372, 8648015), (1729603, 7481860), (1870465, 6918412), (3459206, 3740930)]