19891300

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{107}}^1$

素因数の和:158

約数の個数: 108

約数和(自身を含む): 51465456

約数和(自身を除く): 31574156

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 25, 26, 44, 50, 52, 55, 65, 100, 107, 110, 130, 143, 169, 214, 220, 260, 275, 286, 325, 338, 428, 535, 550, 572, 650, 676, 715, 845, 1070, 1100, 1177, 1300, 1391, 1430, 1690, 1859, 2140, 2354, 2675, 2782, 2860, 3380, 3575, 3718, 4225, 4708, 5350, 5564, 5885, 6955, 7150, 7436, 8450, 9295, 10700, 11770, 13910, 14300, 15301, 16900, 18083, 18590, 23540, 27820, 29425, 30602, 34775, 36166, 37180, 46475, 58850, 61204, 69550, 72332, 76505, 90415, 92950, 117700, 139100, 153010, 180830, 185900, 198913, 306020, 361660, 382525, 397826, 452075, 765050, 795652, 904150, 994565, 1530100, 1808300, 1989130, 3978260, 4972825, 9945650, 19891300]

約数ペア:

[(1, 19891300), (2, 9945650), (4, 4972825), (5, 3978260), (10, 1989130), (11, 1808300), (13, 1530100), (20, 994565), (22, 904150), (25, 795652), (26, 765050), (44, 452075), (50, 397826), (52, 382525), (55, 361660), (65, 306020), (100, 198913), (107, 185900), (110, 180830), (130, 153010), (143, 139100), (169, 117700), (214, 92950), (220, 90415), (260, 76505), (275, 72332), (286, 69550), (325, 61204), (338, 58850), (428, 46475), (535, 37180), (550, 36166), (572, 34775), (650, 30602), (676, 29425), (715, 27820), (845, 23540), (1070, 18590), (1100, 18083), (1177, 16900), (1300, 15301), (1391, 14300), (1430, 13910), (1690, 11770), (1859, 10700), (2140, 9295), (2354, 8450), (2675, 7436), (2782, 7150), (2860, 6955), (3380, 5885), (3575, 5564), (3718, 5350), (4225, 4708)]