123820720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^2$

素因数の和:167

約数の個数: 120

約数和(自身を含む): 319510800

約数和(自身を除く): 195690080

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 29, 38, 40, 53, 58, 76, 80, 95, 106, 116, 145, 152, 190, 212, 232, 265, 290, 304, 380, 424, 464, 530, 551, 580, 760, 848, 1007, 1060, 1102, 1160, 1520, 1537, 2014, 2120, 2204, 2320, 2755, 2809, 3074, 4028, 4240, 4408, 5035, 5510, 5618, 6148, 7685, 8056, 8816, 10070, 11020, 11236, 12296, 14045, 15370, 16112, 20140, 22040, 22472, 24592, 28090, 29203, 30740, 40280, 44080, 44944, 53371, 56180, 58406, 61480, 80560, 81461, 106742, 112360, 116812, 122960, 146015, 162922, 213484, 224720, 233624, 266855, 292030, 325844, 407305, 426968, 467248, 533710, 584060, 651688, 814610, 853936, 1067420, 1168120, 1303376, 1547759, 1629220, 2134840, 2336240, 3095518, 3258440, 4269680, 6191036, 6516880, 7738795, 12382072, 15477590, 24764144, 30955180, 61910360, 123820720]

約数ペア:

[(1, 123820720), (2, 61910360), (4, 30955180), (5, 24764144), (8, 15477590), (10, 12382072), (16, 7738795), (19, 6516880), (20, 6191036), (29, 4269680), (38, 3258440), (40, 3095518), (53, 2336240), (58, 2134840), (76, 1629220), (80, 1547759), (95, 1303376), (106, 1168120), (116, 1067420), (145, 853936), (152, 814610), (190, 651688), (212, 584060), (232, 533710), (265, 467248), (290, 426968), (304, 407305), (380, 325844), (424, 292030), (464, 266855), (530, 233624), (551, 224720), (580, 213484), (760, 162922), (848, 146015), (1007, 122960), (1060, 116812), (1102, 112360), (1160, 106742), (1520, 81461), (1537, 80560), (2014, 61480), (2120, 58406), (2204, 56180), (2320, 53371), (2755, 44944), (2809, 44080), (3074, 40280), (4028, 30740), (4240, 29203), (4408, 28090), (5035, 24592), (5510, 22472), (5618, 22040), (6148, 20140), (7685, 16112), (8056, 15370), (8816, 14045), (10070, 12296), (11020, 11236)]