20178163740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{1493}}^1\times {\mathrm{4597}}^1$

素因数の和:6116

約数の個数: 144

約数和(自身を含む): 65781489312

約数和(自身を除く): 45603325572

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 1493, 2940, 2986, 4479, 4597, 5972, 7465, 8958, 9194, 10451, 13791, 14930, 17916, 18388, 20902, 22395, 22985, 27582, 29860, 31353, 32179, 41804, 44790, 45970, 52255, 55164, 62706, 64358, 68955, 73157, 89580, 91940, 96537, 104510, 125412, 128716, 137910, 146314, 156765, 160895, 193074, 209020, 219471, 225253, 275820, 292628, 313530, 321790, 365785, 386148, 438942, 450506, 482685, 627060, 643580, 675759, 731570, 877884, 901012, 965370, 1097355, 1126265, 1351518, 1463140, 1930740, 2194710, 2252530, 2703036, 3378795, 4389420, 4505060, 6757590, 6863321, 13515180, 13726642, 20589963, 27453284, 34316605, 41179926, 48043247, 68633210, 82359852, 96086494, 102949815, 137266420, 144129741, 192172988, 205899630, 240216235, 288259482, 336302729, 411799260, 480432470, 576518964, 672605458, 720648705, 960864940, 1008908187, 1345210916, 1441297410, 1681513645, 2017816374, 2882594820, 3363027290, 4035632748, 5044540935, 6726054580, 10089081870, 20178163740]

約数ペア:

[(1, 20178163740), (2, 10089081870), (3, 6726054580), (4, 5044540935), (5, 4035632748), (6, 3363027290), (7, 2882594820), (10, 2017816374), (12, 1681513645), (14, 1441297410), (15, 1345210916), (20, 1008908187), (21, 960864940), (28, 720648705), (30, 672605458), (35, 576518964), (42, 480432470), (49, 411799260), (60, 336302729), (70, 288259482), (84, 240216235), (98, 205899630), (105, 192172988), (140, 144129741), (147, 137266420), (196, 102949815), (210, 96086494), (245, 82359852), (294, 68633210), (420, 48043247), (490, 41179926), (588, 34316605), (735, 27453284), (980, 20589963), (1470, 13726642), (1493, 13515180), (2940, 6863321), (2986, 6757590), (4479, 4505060), (4597, 4389420), (5972, 3378795), (7465, 2703036), (8958, 2252530), (9194, 2194710), (10451, 1930740), (13791, 1463140), (14930, 1351518), (17916, 1126265), (18388, 1097355), (20902, 965370), (22395, 901012), (22985, 877884), (27582, 731570), (29860, 675759), (31353, 643580), (32179, 627060), (41804, 482685), (44790, 450506), (45970, 438942), (52255, 386148), (55164, 365785), (62706, 321790), (64358, 313530), (68955, 292628), (73157, 275820), (89580, 225253), (91940, 219471), (96537, 209020), (104510, 193074), (125412, 160895), (128716, 156765), (137910, 146314)]