19865300

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1$

素因数の和:130

約数の個数: 144

約数和(自身を含む): 55413120

約数和(自身を除く): 35547820

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 37, 50, 52, 59, 65, 70, 74, 91, 100, 118, 130, 140, 148, 175, 182, 185, 236, 259, 260, 295, 325, 350, 364, 370, 413, 455, 481, 518, 590, 650, 700, 740, 767, 826, 910, 925, 962, 1036, 1180, 1295, 1300, 1475, 1534, 1652, 1820, 1850, 1924, 2065, 2183, 2275, 2405, 2590, 2950, 3068, 3367, 3700, 3835, 4130, 4366, 4550, 4810, 5180, 5369, 5900, 6475, 6734, 7670, 8260, 8732, 9100, 9620, 10325, 10738, 10915, 12025, 12950, 13468, 15281, 15340, 16835, 19175, 20650, 21476, 21830, 24050, 25900, 26845, 28379, 30562, 33670, 38350, 41300, 43660, 48100, 53690, 54575, 56758, 61124, 67340, 76405, 76700, 84175, 107380, 109150, 113516, 134225, 141895, 152810, 168350, 198653, 218300, 268450, 283790, 305620, 336700, 382025, 397306, 536900, 567580, 709475, 764050, 794612, 993265, 1418950, 1528100, 1986530, 2837900, 3973060, 4966325, 9932650, 19865300]

約数ペア:

[(1, 19865300), (2, 9932650), (4, 4966325), (5, 3973060), (7, 2837900), (10, 1986530), (13, 1528100), (14, 1418950), (20, 993265), (25, 794612), (26, 764050), (28, 709475), (35, 567580), (37, 536900), (50, 397306), (52, 382025), (59, 336700), (65, 305620), (70, 283790), (74, 268450), (91, 218300), (100, 198653), (118, 168350), (130, 152810), (140, 141895), (148, 134225), (175, 113516), (182, 109150), (185, 107380), (236, 84175), (259, 76700), (260, 76405), (295, 67340), (325, 61124), (350, 56758), (364, 54575), (370, 53690), (413, 48100), (455, 43660), (481, 41300), (518, 38350), (590, 33670), (650, 30562), (700, 28379), (740, 26845), (767, 25900), (826, 24050), (910, 21830), (925, 21476), (962, 20650), (1036, 19175), (1180, 16835), (1295, 15340), (1300, 15281), (1475, 13468), (1534, 12950), (1652, 12025), (1820, 10915), (1850, 10738), (1924, 10325), (2065, 9620), (2183, 9100), (2275, 8732), (2405, 8260), (2590, 7670), (2950, 6734), (3068, 6475), (3367, 5900), (3700, 5369), (3835, 5180), (4130, 4810), (4366, 4550)]