81172560

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2543}}^1$

素因数の和:2585

約数の個数: 160

約数和(自身を含む): 302837760

約数和(自身を除く): 221665200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 48, 56, 57, 60, 70, 76, 80, 84, 95, 105, 112, 114, 120, 133, 140, 152, 168, 190, 210, 228, 240, 266, 280, 285, 304, 336, 380, 399, 420, 456, 532, 560, 570, 665, 760, 798, 840, 912, 1064, 1140, 1330, 1520, 1596, 1680, 1995, 2128, 2280, 2543, 2660, 3192, 3990, 4560, 5086, 5320, 6384, 7629, 7980, 10172, 10640, 12715, 15258, 15960, 17801, 20344, 25430, 30516, 31920, 35602, 38145, 40688, 48317, 50860, 53403, 61032, 71204, 76290, 89005, 96634, 101720, 106806, 122064, 142408, 144951, 152580, 178010, 193268, 203440, 213612, 241585, 267015, 284816, 289902, 305160, 338219, 356020, 386536, 427224, 483170, 534030, 579804, 610320, 676438, 712040, 724755, 773072, 854448, 966340, 1014657, 1068060, 1159608, 1352876, 1424080, 1449510, 1691095, 1932680, 2029314, 2136120, 2319216, 2705752, 2899020, 3382190, 3865360, 4058628, 4272240, 5073285, 5411504, 5798040, 6764380, 8117256, 10146570, 11596080, 13528760, 16234512, 20293140, 27057520, 40586280, 81172560]

約数ペア:

[(1, 81172560), (2, 40586280), (3, 27057520), (4, 20293140), (5, 16234512), (6, 13528760), (7, 11596080), (8, 10146570), (10, 8117256), (12, 6764380), (14, 5798040), (15, 5411504), (16, 5073285), (19, 4272240), (20, 4058628), (21, 3865360), (24, 3382190), (28, 2899020), (30, 2705752), (35, 2319216), (38, 2136120), (40, 2029314), (42, 1932680), (48, 1691095), (56, 1449510), (57, 1424080), (60, 1352876), (70, 1159608), (76, 1068060), (80, 1014657), (84, 966340), (95, 854448), (105, 773072), (112, 724755), (114, 712040), (120, 676438), (133, 610320), (140, 579804), (152, 534030), (168, 483170), (190, 427224), (210, 386536), (228, 356020), (240, 338219), (266, 305160), (280, 289902), (285, 284816), (304, 267015), (336, 241585), (380, 213612), (399, 203440), (420, 193268), (456, 178010), (532, 152580), (560, 144951), (570, 142408), (665, 122064), (760, 106806), (798, 101720), (840, 96634), (912, 89005), (1064, 76290), (1140, 71204), (1330, 61032), (1520, 53403), (1596, 50860), (1680, 48317), (1995, 40688), (2128, 38145), (2280, 35602), (2543, 31920), (2660, 30516), (3192, 25430), (3990, 20344), (4560, 17801), (5086, 15960), (5320, 15258), (6384, 12715), (7629, 10640), (7980, 10172)]