19998267220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{3095707}}^1$

素因数の和:3095752

約数の個数: 48

約数和(自身を含む): 46807104960

約数和(自身を除く): 26808837740

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 380, 646, 1292, 1615, 3230, 6460, 3095707, 6191414, 12382828, 15478535, 30957070, 52627019, 58818433, 61914140, 105254038, 117636866, 210508076, 235273732, 263135095, 294092165, 526270190, 588184330, 999913361, 1052540380, 1176368660, 1999826722, 3999653444, 4999566805, 9999133610, 19998267220]

約数ペア:

[(1, 19998267220), (2, 9999133610), (4, 4999566805), (5, 3999653444), (10, 1999826722), (17, 1176368660), (19, 1052540380), (20, 999913361), (34, 588184330), (38, 526270190), (68, 294092165), (76, 263135095), (85, 235273732), (95, 210508076), (170, 117636866), (190, 105254038), (323, 61914140), (340, 58818433), (380, 52627019), (646, 30957070), (1292, 15478535), (1615, 12382828), (3230, 6191414), (6460, 3095707)]