20011992

素因数分解:

$2^3\times 3^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1$

素因数の和:71

約数の個数: 256

約数和(自身を含む): 72576000

約数和(自身を除く): 52564008

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 13, 14, 17, 21, 22, 24, 26, 28, 33, 34, 39, 42, 44, 49, 51, 52, 56, 66, 68, 77, 78, 84, 88, 91, 98, 102, 104, 119, 132, 136, 143, 147, 154, 156, 168, 182, 187, 196, 204, 221, 231, 238, 264, 273, 286, 294, 308, 312, 343, 357, 364, 374, 392, 408, 429, 442, 462, 476, 539, 546, 561, 572, 588, 616, 637, 663, 686, 714, 728, 748, 833, 858, 884, 924, 952, 1001, 1029, 1078, 1092, 1122, 1144, 1176, 1274, 1309, 1326, 1372, 1428, 1496, 1547, 1617, 1666, 1716, 1768, 1848, 1911, 2002, 2058, 2156, 2184, 2244, 2431, 2499, 2548, 2618, 2652, 2744, 2856, 3003, 3094, 3234, 3332, 3432, 3773, 3822, 3927, 4004, 4116, 4312, 4459, 4488, 4641, 4862, 4998, 5096, 5236, 5304, 5831, 6006, 6188, 6468, 6664, 7007, 7293, 7546, 7644, 7854, 8008, 8232, 8918, 9163, 9282, 9724, 9996, 10472, 10829, 11319, 11662, 12012, 12376, 12936, 13377, 14014, 14586, 15092, 15288, 15708, 17017, 17493, 17836, 18326, 18564, 19448, 19992, 21021, 21658, 22638, 23324, 24024, 26754, 27489, 28028, 29172, 30184, 31416, 32487, 34034, 34986, 35672, 36652, 37128, 42042, 43316, 45276, 46648, 49049, 51051, 53508, 54978, 56056, 58344, 64141, 64974, 68068, 69972, 73304, 75803, 84084, 86632, 90552, 98098, 102102, 107016, 109956, 119119, 128282, 129948, 136136, 139944, 147147, 151606, 168168, 192423, 196196, 204204, 219912, 227409, 238238, 256564, 259896, 294294, 303212, 357357, 384846, 392392, 408408, 454818, 476476, 513128, 588588, 606424, 714714, 769692, 833833, 909636, 952952, 1177176, 1429428, 1539384, 1667666, 1819272, 2501499, 2858856, 3335332, 5002998, 6670664, 10005996, 20011992]

約数ペア:

[(1, 20011992), (2, 10005996), (3, 6670664), (4, 5002998), (6, 3335332), (7, 2858856), (8, 2501499), (11, 1819272), (12, 1667666), (13, 1539384), (14, 1429428), (17, 1177176), (21, 952952), (22, 909636), (24, 833833), (26, 769692), (28, 714714), (33, 606424), (34, 588588), (39, 513128), (42, 476476), (44, 454818), (49, 408408), (51, 392392), (52, 384846), (56, 357357), (66, 303212), (68, 294294), (77, 259896), (78, 256564), (84, 238238), (88, 227409), (91, 219912), (98, 204204), (102, 196196), (104, 192423), (119, 168168), (132, 151606), (136, 147147), (143, 139944), (147, 136136), (154, 129948), (156, 128282), (168, 119119), (182, 109956), (187, 107016), (196, 102102), (204, 98098), (221, 90552), (231, 86632), (238, 84084), (264, 75803), (273, 73304), (286, 69972), (294, 68068), (308, 64974), (312, 64141), (343, 58344), (357, 56056), (364, 54978), (374, 53508), (392, 51051), (408, 49049), (429, 46648), (442, 45276), (462, 43316), (476, 42042), (539, 37128), (546, 36652), (561, 35672), (572, 34986), (588, 34034), (616, 32487), (637, 31416), (663, 30184), (686, 29172), (714, 28028), (728, 27489), (748, 26754), (833, 24024), (858, 23324), (884, 22638), (924, 21658), (952, 21021), (1001, 19992), (1029, 19448), (1078, 18564), (1092, 18326), (1122, 17836), (1144, 17493), (1176, 17017), (1274, 15708), (1309, 15288), (1326, 15092), (1372, 14586), (1428, 14014), (1496, 13377), (1547, 12936), (1617, 12376), (1666, 12012), (1716, 11662), (1768, 11319), (1848, 10829), (1911, 10472), (2002, 9996), (2058, 9724), (2156, 9282), (2184, 9163), (2244, 8918), (2431, 8232), (2499, 8008), (2548, 7854), (2618, 7644), (2652, 7546), (2744, 7293), (2856, 7007), (3003, 6664), (3094, 6468), (3234, 6188), (3332, 6006), (3432, 5831), (3773, 5304), (3822, 5236), (3927, 5096), (4004, 4998), (4116, 4862), (4312, 4641), (4459, 4488)]