19959690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^3\times {\mathrm{97}}^1$

素因数の和:164

約数の個数: 64

約数和(自身を含む): 51085440

約数和(自身を除く): 31125750

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 95, 97, 114, 190, 194, 285, 291, 361, 485, 570, 582, 722, 970, 1083, 1455, 1805, 1843, 2166, 2910, 3610, 3686, 5415, 5529, 6859, 9215, 10830, 11058, 13718, 18430, 20577, 27645, 34295, 35017, 41154, 55290, 68590, 70034, 102885, 105051, 175085, 205770, 210102, 350170, 525255, 665323, 1050510, 1330646, 1995969, 3326615, 3991938, 6653230, 9979845, 19959690]

約数ペア:

[(1, 19959690), (2, 9979845), (3, 6653230), (5, 3991938), (6, 3326615), (10, 1995969), (15, 1330646), (19, 1050510), (30, 665323), (38, 525255), (57, 350170), (95, 210102), (97, 205770), (114, 175085), (190, 105051), (194, 102885), (285, 70034), (291, 68590), (361, 55290), (485, 41154), (570, 35017), (582, 34295), (722, 27645), (970, 20577), (1083, 18430), (1455, 13718), (1805, 11058), (1843, 10830), (2166, 9215), (2910, 6859), (3610, 5529), (3686, 5415)]