19735300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1$

素因数の和:110

約数の個数: 144

約数和(自身を含む): 52496640

約数和(自身を除く): 32761340

約数列:

[1, 2, 4, 5, 10, 13, 17, 19, 20, 25, 26, 34, 38, 47, 50, 52, 65, 68, 76, 85, 94, 95, 100, 130, 170, 188, 190, 221, 235, 247, 260, 323, 325, 340, 380, 425, 442, 470, 475, 494, 611, 646, 650, 799, 850, 884, 893, 940, 950, 988, 1105, 1175, 1222, 1235, 1292, 1300, 1598, 1615, 1700, 1786, 1900, 2210, 2350, 2444, 2470, 3055, 3196, 3230, 3572, 3995, 4199, 4420, 4465, 4700, 4940, 5525, 6110, 6175, 6460, 7990, 8075, 8398, 8930, 10387, 11050, 11609, 12220, 12350, 15181, 15275, 15980, 16150, 16796, 17860, 19975, 20774, 20995, 22100, 22325, 23218, 24700, 30362, 30550, 32300, 39950, 41548, 41990, 44650, 46436, 51935, 58045, 60724, 61100, 75905, 79900, 83980, 89300, 103870, 104975, 116090, 151810, 197353, 207740, 209950, 232180, 259675, 290225, 303620, 379525, 394706, 419900, 519350, 580450, 759050, 789412, 986765, 1038700, 1160900, 1518100, 1973530, 3947060, 4933825, 9867650, 19735300]

約数ペア:

[(1, 19735300), (2, 9867650), (4, 4933825), (5, 3947060), (10, 1973530), (13, 1518100), (17, 1160900), (19, 1038700), (20, 986765), (25, 789412), (26, 759050), (34, 580450), (38, 519350), (47, 419900), (50, 394706), (52, 379525), (65, 303620), (68, 290225), (76, 259675), (85, 232180), (94, 209950), (95, 207740), (100, 197353), (130, 151810), (170, 116090), (188, 104975), (190, 103870), (221, 89300), (235, 83980), (247, 79900), (260, 75905), (323, 61100), (325, 60724), (340, 58045), (380, 51935), (425, 46436), (442, 44650), (470, 41990), (475, 41548), (494, 39950), (611, 32300), (646, 30550), (650, 30362), (799, 24700), (850, 23218), (884, 22325), (893, 22100), (940, 20995), (950, 20774), (988, 19975), (1105, 17860), (1175, 16796), (1222, 16150), (1235, 15980), (1292, 15275), (1300, 15181), (1598, 12350), (1615, 12220), (1700, 11609), (1786, 11050), (1900, 10387), (2210, 8930), (2350, 8398), (2444, 8075), (2470, 7990), (3055, 6460), (3196, 6175), (3230, 6110), (3572, 5525), (3995, 4940), (4199, 4700), (4420, 4465)]