20161156785

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{617}}^1\times {\mathrm{1489}}^1$

素因数の和:2151

約数の個数: 128

約数和(自身を含む): 42431385600

約数和(自身を除く): 22270228815

約数列:

[1, 3, 5, 7, 11, 15, 19, 21, 33, 35, 55, 57, 77, 95, 105, 133, 165, 209, 231, 285, 385, 399, 617, 627, 665, 1045, 1155, 1463, 1489, 1851, 1995, 3085, 3135, 4319, 4389, 4467, 6787, 7315, 7445, 9255, 10423, 11723, 12957, 16379, 20361, 21595, 21945, 22335, 28291, 31269, 33935, 35169, 47509, 49137, 52115, 58615, 64785, 81895, 82061, 84873, 101805, 114653, 128953, 141455, 142527, 156345, 175845, 198037, 237545, 245685, 246183, 311201, 343959, 386859, 410305, 424365, 573265, 594111, 644765, 712635, 902671, 918713, 933603, 990185, 1230915, 1556005, 1719795, 1934295, 2178407, 2708013, 2756139, 2970555, 4513355, 4593565, 4668015, 6430991, 6535221, 10105843, 10892035, 13540065, 13780695, 17455547, 19292973, 30317529, 32154955, 32676105, 50529215, 52366641, 70740901, 87277735, 96464865, 122188829, 151587645, 192011017, 212222703, 261833205, 353704505, 366566487, 576033051, 610944145, 960055085, 1061113515, 1344077119, 1832832435, 2880165255, 4032231357, 6720385595, 20161156785]

約数ペア:

[(1, 20161156785), (3, 6720385595), (5, 4032231357), (7, 2880165255), (11, 1832832435), (15, 1344077119), (19, 1061113515), (21, 960055085), (33, 610944145), (35, 576033051), (55, 366566487), (57, 353704505), (77, 261833205), (95, 212222703), (105, 192011017), (133, 151587645), (165, 122188829), (209, 96464865), (231, 87277735), (285, 70740901), (385, 52366641), (399, 50529215), (617, 32676105), (627, 32154955), (665, 30317529), (1045, 19292973), (1155, 17455547), (1463, 13780695), (1489, 13540065), (1851, 10892035), (1995, 10105843), (3085, 6535221), (3135, 6430991), (4319, 4668015), (4389, 4593565), (4467, 4513355), (6787, 2970555), (7315, 2756139), (7445, 2708013), (9255, 2178407), (10423, 1934295), (11723, 1719795), (12957, 1556005), (16379, 1230915), (20361, 990185), (21595, 933603), (21945, 918713), (22335, 902671), (28291, 712635), (31269, 644765), (33935, 594111), (35169, 573265), (47509, 424365), (49137, 410305), (52115, 386859), (58615, 343959), (64785, 311201), (81895, 246183), (82061, 245685), (84873, 237545), (101805, 198037), (114653, 175845), (128953, 156345), (141455, 142527)]