20295990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1$

素因数の和:139

約数の個数: 192

約数和(自身を含む): 66044160

約数和(自身を除く): 45748170

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 13, 15, 18, 19, 22, 26, 30, 33, 38, 39, 45, 55, 57, 65, 66, 78, 83, 90, 95, 99, 110, 114, 117, 130, 143, 165, 166, 171, 190, 195, 198, 209, 234, 247, 249, 285, 286, 330, 342, 390, 415, 418, 429, 494, 495, 498, 570, 585, 627, 715, 741, 747, 830, 855, 858, 913, 990, 1045, 1079, 1170, 1235, 1245, 1254, 1287, 1430, 1482, 1494, 1577, 1710, 1826, 1881, 2090, 2145, 2158, 2223, 2470, 2490, 2574, 2717, 2739, 3135, 3154, 3237, 3705, 3735, 3762, 4290, 4446, 4565, 4731, 5395, 5434, 5478, 6270, 6435, 6474, 7410, 7470, 7885, 8151, 8217, 9130, 9405, 9462, 9711, 10790, 11115, 11869, 12870, 13585, 13695, 14193, 15770, 16185, 16302, 16434, 17347, 18810, 19422, 20501, 22230, 23655, 23738, 24453, 27170, 27390, 28386, 32370, 34694, 35607, 40755, 41002, 41085, 47310, 48555, 48906, 52041, 59345, 61503, 70965, 71214, 81510, 82170, 86735, 97110, 102505, 104082, 106821, 118690, 122265, 123006, 141930, 156123, 173470, 178035, 184509, 205010, 213642, 225511, 244530, 260205, 307515, 312246, 356070, 369018, 451022, 520410, 534105, 615030, 676533, 780615, 922545, 1068210, 1127555, 1353066, 1561230, 1845090, 2029599, 2255110, 3382665, 4059198, 6765330, 10147995, 20295990]

約数ペア:

[(1, 20295990), (2, 10147995), (3, 6765330), (5, 4059198), (6, 3382665), (9, 2255110), (10, 2029599), (11, 1845090), (13, 1561230), (15, 1353066), (18, 1127555), (19, 1068210), (22, 922545), (26, 780615), (30, 676533), (33, 615030), (38, 534105), (39, 520410), (45, 451022), (55, 369018), (57, 356070), (65, 312246), (66, 307515), (78, 260205), (83, 244530), (90, 225511), (95, 213642), (99, 205010), (110, 184509), (114, 178035), (117, 173470), (130, 156123), (143, 141930), (165, 123006), (166, 122265), (171, 118690), (190, 106821), (195, 104082), (198, 102505), (209, 97110), (234, 86735), (247, 82170), (249, 81510), (285, 71214), (286, 70965), (330, 61503), (342, 59345), (390, 52041), (415, 48906), (418, 48555), (429, 47310), (494, 41085), (495, 41002), (498, 40755), (570, 35607), (585, 34694), (627, 32370), (715, 28386), (741, 27390), (747, 27170), (830, 24453), (855, 23738), (858, 23655), (913, 22230), (990, 20501), (1045, 19422), (1079, 18810), (1170, 17347), (1235, 16434), (1245, 16302), (1254, 16185), (1287, 15770), (1430, 14193), (1482, 13695), (1494, 13585), (1577, 12870), (1710, 11869), (1826, 11115), (1881, 10790), (2090, 9711), (2145, 9462), (2158, 9405), (2223, 9130), (2470, 8217), (2490, 8151), (2574, 7885), (2717, 7470), (2739, 7410), (3135, 6474), (3154, 6435), (3237, 6270), (3705, 5478), (3735, 5434), (3762, 5395), (4290, 4731), (4446, 4565)]