19798285

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1$

素因数の和:118

約数の個数: 64

約数和(自身を含む): 30481920

約数和(自身を除く): 10683635

約数列:

[1, 5, 13, 17, 19, 23, 41, 65, 85, 95, 115, 205, 221, 247, 299, 323, 391, 437, 533, 697, 779, 943, 1105, 1235, 1495, 1615, 1955, 2185, 2665, 3485, 3895, 4199, 4715, 5083, 5681, 7429, 9061, 10127, 12259, 13243, 16031, 17917, 20995, 25415, 28405, 37145, 45305, 50635, 61295, 66215, 80155, 89585, 96577, 172159, 208403, 232921, 304589, 482885, 860795, 1042015, 1164605, 1522945, 3959657, 19798285]

約数ペア:

[(1, 19798285), (5, 3959657), (13, 1522945), (17, 1164605), (19, 1042015), (23, 860795), (41, 482885), (65, 304589), (85, 232921), (95, 208403), (115, 172159), (205, 96577), (221, 89585), (247, 80155), (299, 66215), (323, 61295), (391, 50635), (437, 45305), (533, 37145), (697, 28405), (779, 25415), (943, 20995), (1105, 17917), (1235, 16031), (1495, 13243), (1615, 12259), (1955, 10127), (2185, 9061), (2665, 7429), (3485, 5681), (3895, 5083), (4199, 4715)]