20205180

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:137

約数の個数: 192

約数和(自身を含む): 69672960

約数和(自身を除く): 49467780

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, 71, 85, 90, 93, 102, 108, 124, 135, 142, 153, 155, 170, 180, 186, 204, 213, 255, 270, 279, 284, 306, 310, 340, 355, 372, 426, 459, 465, 510, 527, 540, 558, 612, 620, 639, 710, 765, 837, 852, 918, 930, 1020, 1054, 1065, 1116, 1207, 1278, 1395, 1420, 1530, 1581, 1674, 1836, 1860, 1917, 2108, 2130, 2201, 2295, 2414, 2556, 2635, 2790, 3060, 3162, 3195, 3348, 3621, 3834, 4185, 4260, 4402, 4590, 4743, 4828, 5270, 5580, 6035, 6324, 6390, 6603, 7242, 7668, 7905, 8370, 8804, 9180, 9486, 9585, 10540, 10863, 11005, 12070, 12780, 13206, 14229, 14484, 15810, 16740, 18105, 18972, 19170, 19809, 21726, 22010, 23715, 24140, 26412, 28458, 31620, 32589, 33015, 36210, 37417, 38340, 39618, 43452, 44020, 47430, 54315, 56916, 59427, 65178, 66030, 71145, 72420, 74834, 79236, 94860, 99045, 108630, 112251, 118854, 130356, 132060, 142290, 149668, 162945, 187085, 198090, 217260, 224502, 237708, 284580, 297135, 325890, 336753, 374170, 396180, 449004, 561255, 594270, 651780, 673506, 748340, 1010259, 1122510, 1188540, 1347012, 1683765, 2020518, 2245020, 3367530, 4041036, 5051295, 6735060, 10102590, 20205180]

約数ペア:

[(1, 20205180), (2, 10102590), (3, 6735060), (4, 5051295), (5, 4041036), (6, 3367530), (9, 2245020), (10, 2020518), (12, 1683765), (15, 1347012), (17, 1188540), (18, 1122510), (20, 1010259), (27, 748340), (30, 673506), (31, 651780), (34, 594270), (36, 561255), (45, 449004), (51, 396180), (54, 374170), (60, 336753), (62, 325890), (68, 297135), (71, 284580), (85, 237708), (90, 224502), (93, 217260), (102, 198090), (108, 187085), (124, 162945), (135, 149668), (142, 142290), (153, 132060), (155, 130356), (170, 118854), (180, 112251), (186, 108630), (204, 99045), (213, 94860), (255, 79236), (270, 74834), (279, 72420), (284, 71145), (306, 66030), (310, 65178), (340, 59427), (355, 56916), (372, 54315), (426, 47430), (459, 44020), (465, 43452), (510, 39618), (527, 38340), (540, 37417), (558, 36210), (612, 33015), (620, 32589), (639, 31620), (710, 28458), (765, 26412), (837, 24140), (852, 23715), (918, 22010), (930, 21726), (1020, 19809), (1054, 19170), (1065, 18972), (1116, 18105), (1207, 16740), (1278, 15810), (1395, 14484), (1420, 14229), (1530, 13206), (1581, 12780), (1674, 12070), (1836, 11005), (1860, 10863), (1917, 10540), (2108, 9585), (2130, 9486), (2201, 9180), (2295, 8804), (2414, 8370), (2556, 7905), (2635, 7668), (2790, 7242), (3060, 6603), (3162, 6390), (3195, 6324), (3348, 6035), (3621, 5580), (3834, 5270), (4185, 4828), (4260, 4743), (4402, 4590)]