640589580

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{2251}}^1$

素因数の和:2317

約数の個数: 192

約数和(自身を含む): 2179215360

約数和(自身を除く): 1538625780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 27, 30, 31, 34, 36, 45, 51, 54, 60, 62, 68, 85, 90, 93, 102, 108, 124, 135, 153, 155, 170, 180, 186, 204, 255, 270, 279, 306, 310, 340, 372, 459, 465, 510, 527, 540, 558, 612, 620, 765, 837, 918, 930, 1020, 1054, 1116, 1395, 1530, 1581, 1674, 1836, 1860, 2108, 2251, 2295, 2635, 2790, 3060, 3162, 3348, 4185, 4502, 4590, 4743, 5270, 5580, 6324, 6753, 7905, 8370, 9004, 9180, 9486, 10540, 11255, 13506, 14229, 15810, 16740, 18972, 20259, 22510, 23715, 27012, 28458, 31620, 33765, 38267, 40518, 45020, 47430, 56916, 60777, 67530, 69781, 71145, 76534, 81036, 94860, 101295, 114801, 121554, 135060, 139562, 142290, 153068, 191335, 202590, 209343, 229602, 243108, 279124, 284580, 303885, 344403, 348905, 382670, 405180, 418686, 459204, 574005, 607770, 628029, 688806, 697810, 765340, 837372, 1033209, 1046715, 1148010, 1186277, 1215540, 1256058, 1377612, 1395620, 1722015, 1884087, 2066418, 2093430, 2296020, 2372554, 2512116, 3140145, 3444030, 3558831, 3768174, 4132836, 4186860, 4745108, 5166045, 5931385, 6280290, 6888060, 7117662, 7536348, 9420435, 10332090, 10676493, 11862770, 12560580, 14235324, 17794155, 18840870, 20664180, 21352986, 23725540, 32029479, 35588310, 37681740, 42705972, 53382465, 64058958, 71176620, 106764930, 128117916, 160147395, 213529860, 320294790, 640589580]

約数ペア:

[(1, 640589580), (2, 320294790), (3, 213529860), (4, 160147395), (5, 128117916), (6, 106764930), (9, 71176620), (10, 64058958), (12, 53382465), (15, 42705972), (17, 37681740), (18, 35588310), (20, 32029479), (27, 23725540), (30, 21352986), (31, 20664180), (34, 18840870), (36, 17794155), (45, 14235324), (51, 12560580), (54, 11862770), (60, 10676493), (62, 10332090), (68, 9420435), (85, 7536348), (90, 7117662), (93, 6888060), (102, 6280290), (108, 5931385), (124, 5166045), (135, 4745108), (153, 4186860), (155, 4132836), (170, 3768174), (180, 3558831), (186, 3444030), (204, 3140145), (255, 2512116), (270, 2372554), (279, 2296020), (306, 2093430), (310, 2066418), (340, 1884087), (372, 1722015), (459, 1395620), (465, 1377612), (510, 1256058), (527, 1215540), (540, 1186277), (558, 1148010), (612, 1046715), (620, 1033209), (765, 837372), (837, 765340), (918, 697810), (930, 688806), (1020, 628029), (1054, 607770), (1116, 574005), (1395, 459204), (1530, 418686), (1581, 405180), (1674, 382670), (1836, 348905), (1860, 344403), (2108, 303885), (2251, 284580), (2295, 279124), (2635, 243108), (2790, 229602), (3060, 209343), (3162, 202590), (3348, 191335), (4185, 153068), (4502, 142290), (4590, 139562), (4743, 135060), (5270, 121554), (5580, 114801), (6324, 101295), (6753, 94860), (7905, 81036), (8370, 76534), (9004, 71145), (9180, 69781), (9486, 67530), (10540, 60777), (11255, 56916), (13506, 47430), (14229, 45020), (15810, 40518), (16740, 38267), (18972, 33765), (20259, 31620), (22510, 28458), (23715, 27012)]