18914880

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1$

素因数の和:117

約数の個数: 224

約数和(自身を含む): 68031360

約数和(自身を除く): 49116480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 19, 20, 24, 30, 32, 34, 38, 40, 48, 51, 57, 60, 61, 64, 68, 76, 80, 85, 95, 96, 102, 114, 120, 122, 136, 152, 160, 170, 183, 190, 192, 204, 228, 240, 244, 255, 272, 285, 304, 305, 320, 323, 340, 366, 380, 408, 456, 480, 488, 510, 544, 570, 608, 610, 646, 680, 732, 760, 816, 912, 915, 960, 969, 976, 1020, 1037, 1088, 1140, 1159, 1216, 1220, 1292, 1360, 1464, 1520, 1615, 1632, 1824, 1830, 1938, 1952, 2040, 2074, 2280, 2318, 2440, 2584, 2720, 2928, 3040, 3111, 3230, 3264, 3477, 3648, 3660, 3876, 3904, 4080, 4148, 4560, 4636, 4845, 4880, 5168, 5185, 5440, 5795, 5856, 6080, 6222, 6460, 6954, 7320, 7752, 8160, 8296, 9120, 9272, 9690, 9760, 10336, 10370, 11590, 11712, 12444, 12920, 13908, 14640, 15504, 15555, 16320, 16592, 17385, 18240, 18544, 19380, 19520, 19703, 20672, 20740, 23180, 24888, 25840, 27816, 29280, 31008, 31110, 33184, 34770, 37088, 38760, 39406, 41480, 46360, 49776, 51680, 55632, 58560, 59109, 62016, 62220, 66368, 69540, 74176, 77520, 78812, 82960, 92720, 98515, 99552, 103360, 111264, 118218, 124440, 139080, 155040, 157624, 165920, 185440, 197030, 199104, 222528, 236436, 248880, 278160, 295545, 310080, 315248, 331840, 370880, 394060, 472872, 497760, 556320, 591090, 630496, 788120, 945744, 995520, 1112640, 1182180, 1260992, 1576240, 1891488, 2364360, 3152480, 3782976, 4728720, 6304960, 9457440, 18914880]

約数ペア:

[(1, 18914880), (2, 9457440), (3, 6304960), (4, 4728720), (5, 3782976), (6, 3152480), (8, 2364360), (10, 1891488), (12, 1576240), (15, 1260992), (16, 1182180), (17, 1112640), (19, 995520), (20, 945744), (24, 788120), (30, 630496), (32, 591090), (34, 556320), (38, 497760), (40, 472872), (48, 394060), (51, 370880), (57, 331840), (60, 315248), (61, 310080), (64, 295545), (68, 278160), (76, 248880), (80, 236436), (85, 222528), (95, 199104), (96, 197030), (102, 185440), (114, 165920), (120, 157624), (122, 155040), (136, 139080), (152, 124440), (160, 118218), (170, 111264), (183, 103360), (190, 99552), (192, 98515), (204, 92720), (228, 82960), (240, 78812), (244, 77520), (255, 74176), (272, 69540), (285, 66368), (304, 62220), (305, 62016), (320, 59109), (323, 58560), (340, 55632), (366, 51680), (380, 49776), (408, 46360), (456, 41480), (480, 39406), (488, 38760), (510, 37088), (544, 34770), (570, 33184), (608, 31110), (610, 31008), (646, 29280), (680, 27816), (732, 25840), (760, 24888), (816, 23180), (912, 20740), (915, 20672), (960, 19703), (969, 19520), (976, 19380), (1020, 18544), (1037, 18240), (1088, 17385), (1140, 16592), (1159, 16320), (1216, 15555), (1220, 15504), (1292, 14640), (1360, 13908), (1464, 12920), (1520, 12444), (1615, 11712), (1632, 11590), (1824, 10370), (1830, 10336), (1938, 9760), (1952, 9690), (2040, 9272), (2074, 9120), (2280, 8296), (2318, 8160), (2440, 7752), (2584, 7320), (2720, 6954), (2928, 6460), (3040, 6222), (3111, 6080), (3230, 5856), (3264, 5795), (3477, 5440), (3648, 5185), (3660, 5168), (3876, 4880), (3904, 4845), (4080, 4636), (4148, 4560)]