123181920

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{653}}^1$

素因数の和:805

約数の個数: 144

約数和(自身を含む): 424215792

約数和(自身を除く): 301033872

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 131, 144, 160, 180, 240, 262, 288, 360, 393, 480, 524, 653, 655, 720, 786, 1048, 1179, 1306, 1310, 1440, 1572, 1959, 1965, 2096, 2358, 2612, 2620, 3144, 3265, 3918, 3930, 4192, 4716, 5224, 5240, 5877, 5895, 6288, 6530, 7836, 7860, 9432, 9795, 10448, 10480, 11754, 11790, 12576, 13060, 15672, 15720, 18864, 19590, 20896, 20960, 23508, 23580, 26120, 29385, 31344, 31440, 37728, 39180, 47016, 47160, 52240, 58770, 62688, 62880, 78360, 85543, 94032, 94320, 104480, 117540, 156720, 171086, 188064, 188640, 235080, 256629, 313440, 342172, 427715, 470160, 513258, 684344, 769887, 855430, 940320, 1026516, 1283145, 1368688, 1539774, 1710860, 2053032, 2566290, 2737376, 3079548, 3421720, 3849435, 4106064, 5132580, 6159096, 6843440, 7698870, 8212128, 10265160, 12318192, 13686880, 15397740, 20530320, 24636384, 30795480, 41060640, 61590960, 123181920]

約数ペア:

[(1, 123181920), (2, 61590960), (3, 41060640), (4, 30795480), (5, 24636384), (6, 20530320), (8, 15397740), (9, 13686880), (10, 12318192), (12, 10265160), (15, 8212128), (16, 7698870), (18, 6843440), (20, 6159096), (24, 5132580), (30, 4106064), (32, 3849435), (36, 3421720), (40, 3079548), (45, 2737376), (48, 2566290), (60, 2053032), (72, 1710860), (80, 1539774), (90, 1368688), (96, 1283145), (120, 1026516), (131, 940320), (144, 855430), (160, 769887), (180, 684344), (240, 513258), (262, 470160), (288, 427715), (360, 342172), (393, 313440), (480, 256629), (524, 235080), (653, 188640), (655, 188064), (720, 171086), (786, 156720), (1048, 117540), (1179, 104480), (1306, 94320), (1310, 94032), (1440, 85543), (1572, 78360), (1959, 62880), (1965, 62688), (2096, 58770), (2358, 52240), (2612, 47160), (2620, 47016), (3144, 39180), (3265, 37728), (3918, 31440), (3930, 31344), (4192, 29385), (4716, 26120), (5224, 23580), (5240, 23508), (5877, 20960), (5895, 20896), (6288, 19590), (6530, 18864), (7836, 15720), (7860, 15672), (9432, 13060), (9795, 12576), (10448, 11790), (10480, 11754)]