231440560

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{1601}}^1$

素因数の和:1766

約数の個数: 80

約数和(自身を含む): 584025120

約数和(自身を除く): 352584560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 139, 208, 260, 278, 520, 556, 695, 1040, 1112, 1390, 1601, 1807, 2224, 2780, 3202, 3614, 5560, 6404, 7228, 8005, 9035, 11120, 12808, 14456, 16010, 18070, 20813, 25616, 28912, 32020, 36140, 41626, 64040, 72280, 83252, 104065, 128080, 144560, 166504, 208130, 222539, 333008, 416260, 445078, 832520, 890156, 1112695, 1665040, 1780312, 2225390, 2893007, 3560624, 4450780, 5786014, 8901560, 11572028, 14465035, 17803120, 23144056, 28930070, 46288112, 57860140, 115720280, 231440560]

約数ペア:

[(1, 231440560), (2, 115720280), (4, 57860140), (5, 46288112), (8, 28930070), (10, 23144056), (13, 17803120), (16, 14465035), (20, 11572028), (26, 8901560), (40, 5786014), (52, 4450780), (65, 3560624), (80, 2893007), (104, 2225390), (130, 1780312), (139, 1665040), (208, 1112695), (260, 890156), (278, 832520), (520, 445078), (556, 416260), (695, 333008), (1040, 222539), (1112, 208130), (1390, 166504), (1601, 144560), (1807, 128080), (2224, 104065), (2780, 83252), (3202, 72280), (3614, 64040), (5560, 41626), (6404, 36140), (7228, 32020), (8005, 28912), (9035, 25616), (11120, 20813), (12808, 18070), (14456, 16010)]