20685009488

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{541}}^1\times {\mathrm{983}}^1$

素因数の和:1573

約数の個数: 160

約数和(自身を含む): 49996300032

約数和(自身を除く): 29311290544

約数列:

[1, 2, 4, 8, 11, 13, 16, 17, 22, 26, 34, 44, 52, 68, 88, 104, 136, 143, 176, 187, 208, 221, 272, 286, 374, 442, 541, 572, 748, 884, 983, 1082, 1144, 1496, 1768, 1966, 2164, 2288, 2431, 2992, 3536, 3932, 4328, 4862, 5951, 7033, 7864, 8656, 9197, 9724, 10813, 11902, 12779, 14066, 15728, 16711, 18394, 19448, 21626, 23804, 25558, 28132, 33422, 36788, 38896, 43252, 47608, 51116, 56264, 66844, 73576, 77363, 86504, 95216, 101167, 102232, 112528, 119561, 133688, 140569, 147152, 154726, 173008, 183821, 202334, 204464, 217243, 239122, 267376, 281138, 309452, 367642, 404668, 434486, 478244, 531803, 562276, 618904, 735284, 809336, 868972, 956488, 1063606, 1124552, 1237808, 1315171, 1470568, 1618672, 1737944, 1912976, 2127212, 2249104, 2389673, 2630342, 2941136, 3475888, 4254424, 4779346, 5260684, 5849833, 6913439, 8508848, 9040651, 9558692, 10521368, 11699666, 13826878, 18081302, 19117384, 21042736, 23399332, 27653756, 36162604, 38234768, 46798664, 55307512, 72325208, 76047829, 93597328, 99447161, 110615024, 117528463, 144650416, 152095658, 198894322, 235056926, 304191316, 397788644, 470113852, 608382632, 795577288, 940227704, 1216765264, 1292813093, 1591154576, 1880455408, 2585626186, 5171252372, 10342504744, 20685009488]

約数ペア:

[(1, 20685009488), (2, 10342504744), (4, 5171252372), (8, 2585626186), (11, 1880455408), (13, 1591154576), (16, 1292813093), (17, 1216765264), (22, 940227704), (26, 795577288), (34, 608382632), (44, 470113852), (52, 397788644), (68, 304191316), (88, 235056926), (104, 198894322), (136, 152095658), (143, 144650416), (176, 117528463), (187, 110615024), (208, 99447161), (221, 93597328), (272, 76047829), (286, 72325208), (374, 55307512), (442, 46798664), (541, 38234768), (572, 36162604), (748, 27653756), (884, 23399332), (983, 21042736), (1082, 19117384), (1144, 18081302), (1496, 13826878), (1768, 11699666), (1966, 10521368), (2164, 9558692), (2288, 9040651), (2431, 8508848), (2992, 6913439), (3536, 5849833), (3932, 5260684), (4328, 4779346), (4862, 4254424), (5951, 3475888), (7033, 2941136), (7864, 2630342), (8656, 2389673), (9197, 2249104), (9724, 2127212), (10813, 1912976), (11902, 1737944), (12779, 1618672), (14066, 1470568), (15728, 1315171), (16711, 1237808), (18394, 1124552), (19448, 1063606), (21626, 956488), (23804, 868972), (25558, 809336), (28132, 735284), (33422, 618904), (36788, 562276), (38896, 531803), (43252, 478244), (47608, 434486), (51116, 404668), (56264, 367642), (66844, 309452), (73576, 281138), (77363, 267376), (86504, 239122), (95216, 217243), (101167, 204464), (102232, 202334), (112528, 183821), (119561, 173008), (133688, 154726), (140569, 147152)]