19171920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1$

素因数の和:197

約数の個数: 160

約数和(自身を含む): 65138688

約数和(自身を除く): 45966768

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 37, 40, 48, 51, 60, 68, 74, 80, 85, 102, 111, 120, 127, 136, 148, 170, 185, 204, 222, 240, 254, 255, 272, 296, 340, 370, 381, 408, 444, 508, 510, 555, 592, 629, 635, 680, 740, 762, 816, 888, 1016, 1020, 1110, 1258, 1270, 1360, 1480, 1524, 1776, 1887, 1905, 2032, 2040, 2159, 2220, 2516, 2540, 2960, 3048, 3145, 3774, 3810, 4080, 4318, 4440, 4699, 5032, 5080, 6096, 6290, 6477, 7548, 7620, 8636, 8880, 9398, 9435, 10064, 10160, 10795, 12580, 12954, 14097, 15096, 15240, 17272, 18796, 18870, 21590, 23495, 25160, 25908, 28194, 30192, 30480, 32385, 34544, 37592, 37740, 43180, 46990, 50320, 51816, 56388, 64770, 70485, 75184, 75480, 79883, 86360, 93980, 103632, 112776, 129540, 140970, 150960, 159766, 172720, 187960, 225552, 239649, 259080, 281940, 319532, 375920, 399415, 479298, 518160, 563880, 639064, 798830, 958596, 1127760, 1198245, 1278128, 1597660, 1917192, 2396490, 3195320, 3834384, 4792980, 6390640, 9585960, 19171920]

約数ペア:

[(1, 19171920), (2, 9585960), (3, 6390640), (4, 4792980), (5, 3834384), (6, 3195320), (8, 2396490), (10, 1917192), (12, 1597660), (15, 1278128), (16, 1198245), (17, 1127760), (20, 958596), (24, 798830), (30, 639064), (34, 563880), (37, 518160), (40, 479298), (48, 399415), (51, 375920), (60, 319532), (68, 281940), (74, 259080), (80, 239649), (85, 225552), (102, 187960), (111, 172720), (120, 159766), (127, 150960), (136, 140970), (148, 129540), (170, 112776), (185, 103632), (204, 93980), (222, 86360), (240, 79883), (254, 75480), (255, 75184), (272, 70485), (296, 64770), (340, 56388), (370, 51816), (381, 50320), (408, 46990), (444, 43180), (508, 37740), (510, 37592), (555, 34544), (592, 32385), (629, 30480), (635, 30192), (680, 28194), (740, 25908), (762, 25160), (816, 23495), (888, 21590), (1016, 18870), (1020, 18796), (1110, 17272), (1258, 15240), (1270, 15096), (1360, 14097), (1480, 12954), (1524, 12580), (1776, 10795), (1887, 10160), (1905, 10064), (2032, 9435), (2040, 9398), (2159, 8880), (2220, 8636), (2516, 7620), (2540, 7548), (2960, 6477), (3048, 6290), (3145, 6096), (3774, 5080), (3810, 5032), (4080, 4699), (4318, 4440)]