217989850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{929}}^1$

素因数の和:992

約数の個数: 72

約数和(自身を含む): 461337660

約数和(自身を除く): 243347810

約数列:

[1, 2, 5, 10, 13, 19, 25, 26, 38, 50, 65, 95, 130, 190, 247, 325, 361, 475, 494, 650, 722, 929, 950, 1235, 1805, 1858, 2470, 3610, 4645, 4693, 6175, 9025, 9290, 9386, 12077, 12350, 17651, 18050, 23225, 23465, 24154, 35302, 46450, 46930, 60385, 88255, 117325, 120770, 176510, 229463, 234650, 301925, 335369, 441275, 458926, 603850, 670738, 882550, 1147315, 1676845, 2294630, 3353690, 4359797, 5736575, 8384225, 8719594, 11473150, 16768450, 21798985, 43597970, 108994925, 217989850]

約数ペア:

[(1, 217989850), (2, 108994925), (5, 43597970), (10, 21798985), (13, 16768450), (19, 11473150), (25, 8719594), (26, 8384225), (38, 5736575), (50, 4359797), (65, 3353690), (95, 2294630), (130, 1676845), (190, 1147315), (247, 882550), (325, 670738), (361, 603850), (475, 458926), (494, 441275), (650, 335369), (722, 301925), (929, 234650), (950, 229463), (1235, 176510), (1805, 120770), (1858, 117325), (2470, 88255), (3610, 60385), (4645, 46930), (4693, 46450), (6175, 35302), (9025, 24154), (9290, 23465), (9386, 23225), (12077, 18050), (12350, 17651)]