18078480

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{211}}^1$

素因数の和:254

約数の個数: 240

約数和(自身を含む): 73816704

約数和(自身を除く): 55738224

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 17, 18, 20, 21, 24, 28, 30, 34, 35, 36, 40, 42, 45, 48, 51, 56, 60, 63, 68, 70, 72, 80, 84, 85, 90, 102, 105, 112, 119, 120, 126, 136, 140, 144, 153, 168, 170, 180, 204, 210, 211, 238, 240, 252, 255, 272, 280, 306, 315, 336, 340, 357, 360, 408, 420, 422, 476, 504, 510, 560, 595, 612, 630, 633, 680, 714, 720, 765, 816, 840, 844, 952, 1008, 1020, 1055, 1071, 1190, 1224, 1260, 1266, 1360, 1428, 1477, 1530, 1680, 1688, 1785, 1899, 1904, 2040, 2110, 2142, 2380, 2448, 2520, 2532, 2856, 2954, 3060, 3165, 3376, 3570, 3587, 3798, 4080, 4220, 4284, 4431, 4760, 5040, 5064, 5355, 5712, 5908, 6120, 6330, 7140, 7174, 7385, 7596, 8440, 8568, 8862, 9495, 9520, 10128, 10710, 10761, 11816, 12240, 12660, 13293, 14280, 14348, 14770, 15192, 16880, 17136, 17724, 17935, 18990, 21420, 21522, 22155, 23632, 25109, 25320, 26586, 28560, 28696, 29540, 30384, 32283, 35448, 35870, 37980, 42840, 43044, 44310, 50218, 50640, 53172, 53805, 57392, 59080, 64566, 66465, 70896, 71740, 75327, 75960, 85680, 86088, 88620, 100436, 106344, 107610, 118160, 125545, 129132, 132930, 143480, 150654, 151920, 161415, 172176, 177240, 200872, 212688, 215220, 225981, 251090, 258264, 265860, 286960, 301308, 322830, 354480, 376635, 401744, 430440, 451962, 502180, 516528, 531720, 602616, 645660, 753270, 860880, 903924, 1004360, 1063440, 1129905, 1205232, 1291320, 1506540, 1807848, 2008720, 2259810, 2582640, 3013080, 3615696, 4519620, 6026160, 9039240, 18078480]

約数ペア:

[(1, 18078480), (2, 9039240), (3, 6026160), (4, 4519620), (5, 3615696), (6, 3013080), (7, 2582640), (8, 2259810), (9, 2008720), (10, 1807848), (12, 1506540), (14, 1291320), (15, 1205232), (16, 1129905), (17, 1063440), (18, 1004360), (20, 903924), (21, 860880), (24, 753270), (28, 645660), (30, 602616), (34, 531720), (35, 516528), (36, 502180), (40, 451962), (42, 430440), (45, 401744), (48, 376635), (51, 354480), (56, 322830), (60, 301308), (63, 286960), (68, 265860), (70, 258264), (72, 251090), (80, 225981), (84, 215220), (85, 212688), (90, 200872), (102, 177240), (105, 172176), (112, 161415), (119, 151920), (120, 150654), (126, 143480), (136, 132930), (140, 129132), (144, 125545), (153, 118160), (168, 107610), (170, 106344), (180, 100436), (204, 88620), (210, 86088), (211, 85680), (238, 75960), (240, 75327), (252, 71740), (255, 70896), (272, 66465), (280, 64566), (306, 59080), (315, 57392), (336, 53805), (340, 53172), (357, 50640), (360, 50218), (408, 44310), (420, 43044), (422, 42840), (476, 37980), (504, 35870), (510, 35448), (560, 32283), (595, 30384), (612, 29540), (630, 28696), (633, 28560), (680, 26586), (714, 25320), (720, 25109), (765, 23632), (816, 22155), (840, 21522), (844, 21420), (952, 18990), (1008, 17935), (1020, 17724), (1055, 17136), (1071, 16880), (1190, 15192), (1224, 14770), (1260, 14348), (1266, 14280), (1360, 13293), (1428, 12660), (1477, 12240), (1530, 11816), (1680, 10761), (1688, 10710), (1785, 10128), (1899, 9520), (1904, 9495), (2040, 8862), (2110, 8568), (2142, 8440), (2380, 7596), (2448, 7385), (2520, 7174), (2532, 7140), (2856, 6330), (2954, 6120), (3060, 5908), (3165, 5712), (3376, 5355), (3570, 5064), (3587, 5040), (3798, 4760), (4080, 4431), (4220, 4284)]