20161095890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{389}}^1\times {\mathrm{20983}}^1$

素因数の和:21411

約数の個数: 64

約数和(自身を含む): 41246150400

約数和(自身を除く): 21085054510

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 389, 494, 778, 1235, 1945, 2470, 3890, 5057, 7391, 10114, 14782, 20983, 25285, 36955, 41966, 50570, 73910, 96083, 104915, 192166, 209830, 272779, 398677, 480415, 545558, 797354, 960830, 1363895, 1993385, 2727790, 3986770, 5182801, 8162387, 10365602, 16324774, 25914005, 40811935, 51828010, 81623870, 106111031, 155085353, 212222062, 310170706, 530555155, 775426765, 1061110310, 1550853530, 2016109589, 4032219178, 10080547945, 20161095890]

約数ペア:

[(1, 20161095890), (2, 10080547945), (5, 4032219178), (10, 2016109589), (13, 1550853530), (19, 1061110310), (26, 775426765), (38, 530555155), (65, 310170706), (95, 212222062), (130, 155085353), (190, 106111031), (247, 81623870), (389, 51828010), (494, 40811935), (778, 25914005), (1235, 16324774), (1945, 10365602), (2470, 8162387), (3890, 5182801), (5057, 3986770), (7391, 2727790), (10114, 1993385), (14782, 1363895), (20983, 960830), (25285, 797354), (36955, 545558), (41966, 480415), (50570, 398677), (73910, 272779), (96083, 209830), (104915, 192166)]