15679997840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{1621}}^1$

素因数の和:1849

約数の個数: 160

約数和(自身を含む): 40141930752

約数和(自身を除く): 24461932912

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 71, 80, 104, 130, 131, 142, 208, 260, 262, 284, 355, 520, 524, 568, 655, 710, 923, 1040, 1048, 1136, 1310, 1420, 1621, 1703, 1846, 2096, 2620, 2840, 3242, 3406, 3692, 4615, 5240, 5680, 6484, 6812, 7384, 8105, 8515, 9230, 9301, 10480, 12968, 13624, 14768, 16210, 17030, 18460, 18602, 21073, 25936, 27248, 32420, 34060, 36920, 37204, 42146, 46505, 64840, 68120, 73840, 74408, 84292, 93010, 105365, 115091, 120913, 129680, 136240, 148816, 168584, 186020, 210730, 212351, 230182, 241826, 337168, 372040, 421460, 424702, 460364, 483652, 575455, 604565, 744080, 842920, 849404, 920728, 967304, 1061755, 1150910, 1209130, 1496183, 1685840, 1698808, 1841456, 1934608, 2123510, 2301820, 2418260, 2760563, 2992366, 3397616, 4247020, 4603640, 4836520, 5521126, 5984732, 7480915, 8494040, 9207280, 9673040, 11042252, 11969464, 13802815, 14961830, 15076921, 16988080, 22084504, 23938928, 27605630, 29923660, 30153842, 44169008, 55211260, 59847320, 60307684, 75384605, 110422520, 119694640, 120615368, 150769210, 195999973, 220845040, 241230736, 301538420, 391999946, 603076840, 783999892, 979999865, 1206153680, 1567999784, 1959999730, 3135999568, 3919999460, 7839998920, 15679997840]

約数ペア:

[(1, 15679997840), (2, 7839998920), (4, 3919999460), (5, 3135999568), (8, 1959999730), (10, 1567999784), (13, 1206153680), (16, 979999865), (20, 783999892), (26, 603076840), (40, 391999946), (52, 301538420), (65, 241230736), (71, 220845040), (80, 195999973), (104, 150769210), (130, 120615368), (131, 119694640), (142, 110422520), (208, 75384605), (260, 60307684), (262, 59847320), (284, 55211260), (355, 44169008), (520, 30153842), (524, 29923660), (568, 27605630), (655, 23938928), (710, 22084504), (923, 16988080), (1040, 15076921), (1048, 14961830), (1136, 13802815), (1310, 11969464), (1420, 11042252), (1621, 9673040), (1703, 9207280), (1846, 8494040), (2096, 7480915), (2620, 5984732), (2840, 5521126), (3242, 4836520), (3406, 4603640), (3692, 4247020), (4615, 3397616), (5240, 2992366), (5680, 2760563), (6484, 2418260), (6812, 2301820), (7384, 2123510), (8105, 1934608), (8515, 1841456), (9230, 1698808), (9301, 1685840), (10480, 1496183), (12968, 1209130), (13624, 1150910), (14768, 1061755), (16210, 967304), (17030, 920728), (18460, 849404), (18602, 842920), (21073, 744080), (25936, 604565), (27248, 575455), (32420, 483652), (34060, 460364), (36920, 424702), (37204, 421460), (42146, 372040), (46505, 337168), (64840, 241826), (68120, 230182), (73840, 212351), (74408, 210730), (84292, 186020), (93010, 168584), (105365, 148816), (115091, 136240), (120913, 129680)]