20163980375

素因数分解:

$5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{110261}}^1$

素因数の和:110313

約数の個数: 64

約数和(自身を含む): 33025674240

約数和(自身を除く): 12861693865

約数列:

[1, 5, 7, 11, 19, 25, 35, 55, 77, 95, 125, 133, 175, 209, 275, 385, 475, 665, 875, 1045, 1375, 1463, 1925, 2375, 3325, 5225, 7315, 9625, 16625, 26125, 36575, 110261, 182875, 551305, 771827, 1212871, 2094959, 2756525, 3859135, 6064355, 8490097, 10474795, 13782625, 14664713, 19295675, 23044549, 30321775, 42450485, 52373975, 73323565, 96478375, 115222745, 151608875, 161311843, 212252425, 261869875, 366617825, 576113725, 806559215, 1061262125, 1833089125, 2880568625, 4032796075, 20163980375]

約数ペア:

[(1, 20163980375), (5, 4032796075), (7, 2880568625), (11, 1833089125), (19, 1061262125), (25, 806559215), (35, 576113725), (55, 366617825), (77, 261869875), (95, 212252425), (125, 161311843), (133, 151608875), (175, 115222745), (209, 96478375), (275, 73323565), (385, 52373975), (475, 42450485), (665, 30321775), (875, 23044549), (1045, 19295675), (1375, 14664713), (1463, 13782625), (1925, 10474795), (2375, 8490097), (3325, 6064355), (5225, 3859135), (7315, 2756525), (9625, 2094959), (16625, 1212871), (26125, 771827), (36575, 551305), (110261, 182875)]