19799650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{367}}^1$

素因数の和:475

約数の個数: 48

約数和(自身を含む): 40247424

約数和(自身を除く): 20447774

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 83, 130, 166, 325, 367, 415, 650, 734, 830, 1079, 1835, 2075, 2158, 3670, 4150, 4771, 5395, 9175, 9542, 10790, 18350, 23855, 26975, 30461, 47710, 53950, 60922, 119275, 152305, 238550, 304610, 395993, 761525, 791986, 1523050, 1979965, 3959930, 9899825, 19799650]

約数ペア:

[(1, 19799650), (2, 9899825), (5, 3959930), (10, 1979965), (13, 1523050), (25, 791986), (26, 761525), (50, 395993), (65, 304610), (83, 238550), (130, 152305), (166, 119275), (325, 60922), (367, 53950), (415, 47710), (650, 30461), (734, 26975), (830, 23855), (1079, 18350), (1835, 10790), (2075, 9542), (2158, 9175), (3670, 5395), (4150, 4771)]