19538440

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{487}}^1$

素因数の和:574

約数の個数: 64

約数和(自身を含む): 47433600

約数和(自身を除く): 27895160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 59, 68, 85, 118, 136, 170, 236, 295, 340, 472, 487, 590, 680, 974, 1003, 1180, 1948, 2006, 2360, 2435, 3896, 4012, 4870, 5015, 8024, 8279, 9740, 10030, 16558, 19480, 20060, 28733, 33116, 40120, 41395, 57466, 66232, 82790, 114932, 143665, 165580, 229864, 287330, 331160, 488461, 574660, 976922, 1149320, 1953844, 2442305, 3907688, 4884610, 9769220, 19538440]

約数ペア:

[(1, 19538440), (2, 9769220), (4, 4884610), (5, 3907688), (8, 2442305), (10, 1953844), (17, 1149320), (20, 976922), (34, 574660), (40, 488461), (59, 331160), (68, 287330), (85, 229864), (118, 165580), (136, 143665), (170, 114932), (236, 82790), (295, 66232), (340, 57466), (472, 41395), (487, 40120), (590, 33116), (680, 28733), (974, 20060), (1003, 19480), (1180, 16558), (1948, 10030), (2006, 9740), (2360, 8279), (2435, 8024), (3896, 5015), (4012, 4870)]