21701520

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1$

素因数の和:239

約数の個数: 200

約数和(自身を含む): 80211384

約数和(自身を除く): 58509864

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 27, 30, 34, 36, 40, 45, 48, 51, 54, 60, 68, 72, 80, 81, 85, 90, 102, 108, 120, 135, 136, 144, 153, 162, 170, 180, 197, 204, 216, 240, 255, 270, 272, 306, 324, 340, 360, 394, 405, 408, 432, 459, 510, 540, 591, 612, 648, 680, 720, 765, 788, 810, 816, 918, 985, 1020, 1080, 1182, 1224, 1296, 1360, 1377, 1530, 1576, 1620, 1773, 1836, 1970, 2040, 2160, 2295, 2364, 2448, 2754, 2955, 3060, 3152, 3240, 3349, 3546, 3672, 3940, 4080, 4590, 4728, 5319, 5508, 5910, 6120, 6480, 6698, 6885, 7092, 7344, 7880, 8865, 9180, 9456, 10047, 10638, 11016, 11820, 12240, 13396, 13770, 14184, 15760, 15957, 16745, 17730, 18360, 20094, 21276, 22032, 23640, 26595, 26792, 27540, 28368, 30141, 31914, 33490, 35460, 36720, 40188, 42552, 47280, 50235, 53190, 53584, 55080, 60282, 63828, 66980, 70920, 79785, 80376, 85104, 90423, 100470, 106380, 110160, 120564, 127656, 133960, 141840, 150705, 159570, 160752, 180846, 200940, 212760, 241128, 255312, 267920, 271269, 301410, 319140, 361692, 401880, 425520, 452115, 482256, 542538, 602820, 638280, 723384, 803760, 904230, 1085076, 1205640, 1276560, 1356345, 1446768, 1808460, 2170152, 2411280, 2712690, 3616920, 4340304, 5425380, 7233840, 10850760, 21701520]

約数ペア:

[(1, 21701520), (2, 10850760), (3, 7233840), (4, 5425380), (5, 4340304), (6, 3616920), (8, 2712690), (9, 2411280), (10, 2170152), (12, 1808460), (15, 1446768), (16, 1356345), (17, 1276560), (18, 1205640), (20, 1085076), (24, 904230), (27, 803760), (30, 723384), (34, 638280), (36, 602820), (40, 542538), (45, 482256), (48, 452115), (51, 425520), (54, 401880), (60, 361692), (68, 319140), (72, 301410), (80, 271269), (81, 267920), (85, 255312), (90, 241128), (102, 212760), (108, 200940), (120, 180846), (135, 160752), (136, 159570), (144, 150705), (153, 141840), (162, 133960), (170, 127656), (180, 120564), (197, 110160), (204, 106380), (216, 100470), (240, 90423), (255, 85104), (270, 80376), (272, 79785), (306, 70920), (324, 66980), (340, 63828), (360, 60282), (394, 55080), (405, 53584), (408, 53190), (432, 50235), (459, 47280), (510, 42552), (540, 40188), (591, 36720), (612, 35460), (648, 33490), (680, 31914), (720, 30141), (765, 28368), (788, 27540), (810, 26792), (816, 26595), (918, 23640), (985, 22032), (1020, 21276), (1080, 20094), (1182, 18360), (1224, 17730), (1296, 16745), (1360, 15957), (1377, 15760), (1530, 14184), (1576, 13770), (1620, 13396), (1773, 12240), (1836, 11820), (1970, 11016), (2040, 10638), (2160, 10047), (2295, 9456), (2364, 9180), (2448, 8865), (2754, 7880), (2955, 7344), (3060, 7092), (3152, 6885), (3240, 6698), (3349, 6480), (3546, 6120), (3672, 5910), (3940, 5508), (4080, 5319), (4590, 4728)]