20921625192

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{487}}^1\times {\mathrm{7247}}^1$

素因数の和:7775

約数の個数: 128

約数和(自身を含む): 59422003200

約数和(自身を除く): 38500378008

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 19, 24, 26, 38, 39, 52, 57, 76, 78, 104, 114, 152, 156, 228, 247, 312, 456, 487, 494, 741, 974, 988, 1461, 1482, 1948, 1976, 2922, 2964, 3896, 5844, 5928, 6331, 7247, 9253, 11688, 12662, 14494, 18506, 18993, 21741, 25324, 27759, 28988, 37012, 37986, 43482, 50648, 55518, 57976, 74024, 75972, 86964, 94211, 111036, 120289, 137693, 151944, 173928, 188422, 222072, 240578, 275386, 282633, 360867, 376844, 413079, 481156, 550772, 565266, 721734, 753688, 826158, 962312, 1101544, 1130532, 1443468, 1652316, 1790009, 2261064, 2886936, 3304632, 3529289, 3580018, 5370027, 7058578, 7160036, 10587867, 10740054, 14117156, 14320072, 21175734, 21480108, 28234312, 42351468, 42960216, 45880757, 67056491, 84702936, 91761514, 134112982, 137642271, 183523028, 201169473, 268225964, 275284542, 367046056, 402338946, 536451928, 550569084, 804677892, 871734383, 1101138168, 1609355784, 1743468766, 2615203149, 3486937532, 5230406298, 6973875064, 10460812596, 20921625192]

約数ペア:

[(1, 20921625192), (2, 10460812596), (3, 6973875064), (4, 5230406298), (6, 3486937532), (8, 2615203149), (12, 1743468766), (13, 1609355784), (19, 1101138168), (24, 871734383), (26, 804677892), (38, 550569084), (39, 536451928), (52, 402338946), (57, 367046056), (76, 275284542), (78, 268225964), (104, 201169473), (114, 183523028), (152, 137642271), (156, 134112982), (228, 91761514), (247, 84702936), (312, 67056491), (456, 45880757), (487, 42960216), (494, 42351468), (741, 28234312), (974, 21480108), (988, 21175734), (1461, 14320072), (1482, 14117156), (1948, 10740054), (1976, 10587867), (2922, 7160036), (2964, 7058578), (3896, 5370027), (5844, 3580018), (5928, 3529289), (6331, 3304632), (7247, 2886936), (9253, 2261064), (11688, 1790009), (12662, 1652316), (14494, 1443468), (18506, 1130532), (18993, 1101544), (21741, 962312), (25324, 826158), (27759, 753688), (28988, 721734), (37012, 565266), (37986, 550772), (43482, 481156), (50648, 413079), (55518, 376844), (57976, 360867), (74024, 282633), (75972, 275386), (86964, 240578), (94211, 222072), (111036, 188422), (120289, 173928), (137693, 151944)]