171720480

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{991}}^1$

素因数の和:1047

約数の個数: 144

約数和(自身を含む): 571463424

約数和(自身を除く): 399742944

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 32, 38, 40, 48, 57, 60, 76, 80, 95, 96, 114, 120, 152, 160, 190, 228, 240, 285, 304, 361, 380, 456, 480, 570, 608, 722, 760, 912, 991, 1083, 1140, 1444, 1520, 1805, 1824, 1982, 2166, 2280, 2888, 2973, 3040, 3610, 3964, 4332, 4560, 4955, 5415, 5776, 5946, 7220, 7928, 8664, 9120, 9910, 10830, 11552, 11892, 14440, 14865, 15856, 17328, 18829, 19820, 21660, 23784, 28880, 29730, 31712, 34656, 37658, 39640, 43320, 47568, 56487, 57760, 59460, 75316, 79280, 86640, 94145, 95136, 112974, 118920, 150632, 158560, 173280, 188290, 225948, 237840, 282435, 301264, 357751, 376580, 451896, 475680, 564870, 602528, 715502, 753160, 903792, 1073253, 1129740, 1431004, 1506320, 1788755, 1807584, 2146506, 2259480, 2862008, 3012640, 3577510, 4293012, 4518960, 5366265, 5724016, 7155020, 8586024, 9037920, 10732530, 11448032, 14310040, 17172048, 21465060, 28620080, 34344096, 42930120, 57240160, 85860240, 171720480]

約数ペア:

[(1, 171720480), (2, 85860240), (3, 57240160), (4, 42930120), (5, 34344096), (6, 28620080), (8, 21465060), (10, 17172048), (12, 14310040), (15, 11448032), (16, 10732530), (19, 9037920), (20, 8586024), (24, 7155020), (30, 5724016), (32, 5366265), (38, 4518960), (40, 4293012), (48, 3577510), (57, 3012640), (60, 2862008), (76, 2259480), (80, 2146506), (95, 1807584), (96, 1788755), (114, 1506320), (120, 1431004), (152, 1129740), (160, 1073253), (190, 903792), (228, 753160), (240, 715502), (285, 602528), (304, 564870), (361, 475680), (380, 451896), (456, 376580), (480, 357751), (570, 301264), (608, 282435), (722, 237840), (760, 225948), (912, 188290), (991, 173280), (1083, 158560), (1140, 150632), (1444, 118920), (1520, 112974), (1805, 95136), (1824, 94145), (1982, 86640), (2166, 79280), (2280, 75316), (2888, 59460), (2973, 57760), (3040, 56487), (3610, 47568), (3964, 43320), (4332, 39640), (4560, 37658), (4955, 34656), (5415, 31712), (5776, 29730), (5946, 28880), (7220, 23784), (7928, 21660), (8664, 19820), (9120, 18829), (9910, 17328), (10830, 15856), (11552, 14865), (11892, 14440)]