19008990

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1$

素因数の和:255

約数の個数: 192

約数和(自身を含む): 66673152

約数和(自身を除く): 47664162

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 11, 13, 14, 15, 18, 21, 22, 26, 30, 33, 35, 39, 42, 45, 55, 63, 65, 66, 70, 77, 78, 90, 91, 99, 105, 110, 117, 126, 130, 143, 154, 165, 182, 195, 198, 210, 211, 231, 234, 273, 286, 315, 330, 385, 390, 422, 429, 455, 462, 495, 546, 585, 630, 633, 693, 715, 770, 819, 858, 910, 990, 1001, 1055, 1155, 1170, 1266, 1287, 1365, 1386, 1430, 1477, 1638, 1899, 2002, 2110, 2145, 2310, 2321, 2574, 2730, 2743, 2954, 3003, 3165, 3465, 3798, 4095, 4290, 4431, 4642, 5005, 5486, 6006, 6330, 6435, 6930, 6963, 7385, 8190, 8229, 8862, 9009, 9495, 10010, 11605, 12870, 13293, 13715, 13926, 14770, 15015, 16247, 16458, 18018, 18990, 19201, 20889, 22155, 23210, 24687, 26586, 27430, 30030, 30173, 32494, 34815, 38402, 41145, 41778, 44310, 45045, 48741, 49374, 57603, 60346, 66465, 69630, 81235, 82290, 90090, 90519, 96005, 97482, 104445, 115206, 123435, 132930, 146223, 150865, 162470, 172809, 181038, 192010, 208890, 211211, 243705, 246870, 271557, 288015, 292446, 301730, 345618, 422422, 452595, 487410, 543114, 576030, 633633, 731115, 864045, 905190, 1056055, 1267266, 1357785, 1462230, 1728090, 1900899, 2112110, 2715570, 3168165, 3801798, 6336330, 9504495, 19008990]

約数ペア:

[(1, 19008990), (2, 9504495), (3, 6336330), (5, 3801798), (6, 3168165), (7, 2715570), (9, 2112110), (10, 1900899), (11, 1728090), (13, 1462230), (14, 1357785), (15, 1267266), (18, 1056055), (21, 905190), (22, 864045), (26, 731115), (30, 633633), (33, 576030), (35, 543114), (39, 487410), (42, 452595), (45, 422422), (55, 345618), (63, 301730), (65, 292446), (66, 288015), (70, 271557), (77, 246870), (78, 243705), (90, 211211), (91, 208890), (99, 192010), (105, 181038), (110, 172809), (117, 162470), (126, 150865), (130, 146223), (143, 132930), (154, 123435), (165, 115206), (182, 104445), (195, 97482), (198, 96005), (210, 90519), (211, 90090), (231, 82290), (234, 81235), (273, 69630), (286, 66465), (315, 60346), (330, 57603), (385, 49374), (390, 48741), (422, 45045), (429, 44310), (455, 41778), (462, 41145), (495, 38402), (546, 34815), (585, 32494), (630, 30173), (633, 30030), (693, 27430), (715, 26586), (770, 24687), (819, 23210), (858, 22155), (910, 20889), (990, 19201), (1001, 18990), (1055, 18018), (1155, 16458), (1170, 16247), (1266, 15015), (1287, 14770), (1365, 13926), (1386, 13715), (1430, 13293), (1477, 12870), (1638, 11605), (1899, 10010), (2002, 9495), (2110, 9009), (2145, 8862), (2310, 8229), (2321, 8190), (2574, 7385), (2730, 6963), (2743, 6930), (2954, 6435), (3003, 6330), (3165, 6006), (3465, 5486), (3798, 5005), (4095, 4642), (4290, 4431)]