68808880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{223}}^1$

素因数の和:291

約数の個数: 160

約数和(自身を含む): 199987200

約数和(自身を除く): 131178320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 29, 35, 38, 40, 56, 58, 70, 76, 80, 95, 112, 116, 133, 140, 145, 152, 190, 203, 223, 232, 266, 280, 290, 304, 380, 406, 446, 464, 532, 551, 560, 580, 665, 760, 812, 892, 1015, 1064, 1102, 1115, 1160, 1330, 1520, 1561, 1624, 1784, 2030, 2128, 2204, 2230, 2320, 2660, 2755, 3122, 3248, 3568, 3857, 4060, 4237, 4408, 4460, 5320, 5510, 6244, 6467, 7714, 7805, 8120, 8474, 8816, 8920, 10640, 11020, 12488, 12934, 15428, 15610, 16240, 16948, 17840, 19285, 21185, 22040, 24976, 25868, 29659, 30856, 31220, 32335, 33896, 38570, 42370, 44080, 45269, 51736, 59318, 61712, 62440, 64670, 67792, 77140, 84740, 90538, 103472, 118636, 122873, 124880, 129340, 148295, 154280, 169480, 181076, 226345, 237272, 245746, 258680, 296590, 308560, 338960, 362152, 452690, 474544, 491492, 517360, 593180, 614365, 724304, 860111, 905380, 982984, 1186360, 1228730, 1720222, 1810760, 1965968, 2372720, 2457460, 3440444, 3621520, 4300555, 4914920, 6880888, 8601110, 9829840, 13761776, 17202220, 34404440, 68808880]

約数ペア:

[(1, 68808880), (2, 34404440), (4, 17202220), (5, 13761776), (7, 9829840), (8, 8601110), (10, 6880888), (14, 4914920), (16, 4300555), (19, 3621520), (20, 3440444), (28, 2457460), (29, 2372720), (35, 1965968), (38, 1810760), (40, 1720222), (56, 1228730), (58, 1186360), (70, 982984), (76, 905380), (80, 860111), (95, 724304), (112, 614365), (116, 593180), (133, 517360), (140, 491492), (145, 474544), (152, 452690), (190, 362152), (203, 338960), (223, 308560), (232, 296590), (266, 258680), (280, 245746), (290, 237272), (304, 226345), (380, 181076), (406, 169480), (446, 154280), (464, 148295), (532, 129340), (551, 124880), (560, 122873), (580, 118636), (665, 103472), (760, 90538), (812, 84740), (892, 77140), (1015, 67792), (1064, 64670), (1102, 62440), (1115, 61712), (1160, 59318), (1330, 51736), (1520, 45269), (1561, 44080), (1624, 42370), (1784, 38570), (2030, 33896), (2128, 32335), (2204, 31220), (2230, 30856), (2320, 29659), (2660, 25868), (2755, 24976), (3122, 22040), (3248, 21185), (3568, 19285), (3857, 17840), (4060, 16948), (4237, 16240), (4408, 15610), (4460, 15428), (5320, 12934), (5510, 12488), (6244, 11020), (6467, 10640), (7714, 8920), (7805, 8816), (8120, 8474)]