12917380

素因数分解:

$2^2\times 5^1\times 7^4\times {\mathrm{269}}^1$

素因数の和:306

約数の個数: 60

約数和(自身を含む): 31763340

約数和(自身を除く): 18845960

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 269, 343, 490, 538, 686, 980, 1076, 1345, 1372, 1715, 1883, 2401, 2690, 3430, 3766, 4802, 5380, 6860, 7532, 9415, 9604, 12005, 13181, 18830, 24010, 26362, 37660, 48020, 52724, 65905, 92267, 131810, 184534, 263620, 369068, 461335, 645869, 922670, 1291738, 1845340, 2583476, 3229345, 6458690, 12917380]

約数ペア:

[(1, 12917380), (2, 6458690), (4, 3229345), (5, 2583476), (7, 1845340), (10, 1291738), (14, 922670), (20, 645869), (28, 461335), (35, 369068), (49, 263620), (70, 184534), (98, 131810), (140, 92267), (196, 65905), (245, 52724), (269, 48020), (343, 37660), (490, 26362), (538, 24010), (686, 18830), (980, 13181), (1076, 12005), (1345, 9604), (1372, 9415), (1715, 7532), (1883, 6860), (2401, 5380), (2690, 4802), (3430, 3766)]