28057680

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{293}}^1$

素因数の和:338

約数の個数: 240

約数和(自身を含む): 113742720

約数和(自身を除く): 85685040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 19, 20, 21, 24, 28, 30, 35, 36, 38, 40, 42, 45, 48, 56, 57, 60, 63, 70, 72, 76, 80, 84, 90, 95, 105, 112, 114, 120, 126, 133, 140, 144, 152, 168, 171, 180, 190, 210, 228, 240, 252, 266, 280, 285, 293, 304, 315, 336, 342, 360, 380, 399, 420, 456, 504, 532, 560, 570, 586, 630, 665, 684, 720, 760, 798, 840, 855, 879, 912, 1008, 1064, 1140, 1172, 1197, 1260, 1330, 1368, 1465, 1520, 1596, 1680, 1710, 1758, 1995, 2051, 2128, 2280, 2344, 2394, 2520, 2637, 2660, 2736, 2930, 3192, 3420, 3516, 3990, 4102, 4395, 4560, 4688, 4788, 5040, 5274, 5320, 5567, 5860, 5985, 6153, 6384, 6840, 7032, 7980, 8204, 8790, 9576, 10255, 10548, 10640, 11134, 11720, 11970, 12306, 13185, 13680, 14064, 15960, 16408, 16701, 17580, 18459, 19152, 20510, 21096, 22268, 23440, 23940, 24612, 26370, 27835, 30765, 31920, 32816, 33402, 35160, 36918, 38969, 41020, 42192, 44536, 47880, 49224, 50103, 52740, 55670, 61530, 66804, 70320, 73836, 77938, 82040, 83505, 89072, 92295, 95760, 98448, 100206, 105480, 111340, 116907, 123060, 133608, 147672, 155876, 164080, 167010, 184590, 194845, 200412, 210960, 222680, 233814, 246120, 250515, 267216, 295344, 311752, 334020, 350721, 369180, 389690, 400824, 445360, 467628, 492240, 501030, 584535, 623504, 668040, 701442, 738360, 779380, 801648, 935256, 1002060, 1169070, 1336080, 1402884, 1476720, 1558760, 1753605, 1870512, 2004120, 2338140, 2805768, 3117520, 3507210, 4008240, 4676280, 5611536, 7014420, 9352560, 14028840, 28057680]

約数ペア:

[(1, 28057680), (2, 14028840), (3, 9352560), (4, 7014420), (5, 5611536), (6, 4676280), (7, 4008240), (8, 3507210), (9, 3117520), (10, 2805768), (12, 2338140), (14, 2004120), (15, 1870512), (16, 1753605), (18, 1558760), (19, 1476720), (20, 1402884), (21, 1336080), (24, 1169070), (28, 1002060), (30, 935256), (35, 801648), (36, 779380), (38, 738360), (40, 701442), (42, 668040), (45, 623504), (48, 584535), (56, 501030), (57, 492240), (60, 467628), (63, 445360), (70, 400824), (72, 389690), (76, 369180), (80, 350721), (84, 334020), (90, 311752), (95, 295344), (105, 267216), (112, 250515), (114, 246120), (120, 233814), (126, 222680), (133, 210960), (140, 200412), (144, 194845), (152, 184590), (168, 167010), (171, 164080), (180, 155876), (190, 147672), (210, 133608), (228, 123060), (240, 116907), (252, 111340), (266, 105480), (280, 100206), (285, 98448), (293, 95760), (304, 92295), (315, 89072), (336, 83505), (342, 82040), (360, 77938), (380, 73836), (399, 70320), (420, 66804), (456, 61530), (504, 55670), (532, 52740), (560, 50103), (570, 49224), (586, 47880), (630, 44536), (665, 42192), (684, 41020), (720, 38969), (760, 36918), (798, 35160), (840, 33402), (855, 32816), (879, 31920), (912, 30765), (1008, 27835), (1064, 26370), (1140, 24612), (1172, 23940), (1197, 23440), (1260, 22268), (1330, 21096), (1368, 20510), (1465, 19152), (1520, 18459), (1596, 17580), (1680, 16701), (1710, 16408), (1758, 15960), (1995, 14064), (2051, 13680), (2128, 13185), (2280, 12306), (2344, 11970), (2394, 11720), (2520, 11134), (2637, 10640), (2660, 10548), (2736, 10255), (2930, 9576), (3192, 8790), (3420, 8204), (3516, 7980), (3990, 7032), (4102, 6840), (4395, 6384), (4560, 6153), (4688, 5985), (4788, 5860), (5040, 5567), (5274, 5320)]