130160720

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{181}}^1$

素因数の和:384

約数の個数: 80

約数和(自身を含む): 310761360

約数和(自身を除く): 180600640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 101, 178, 181, 202, 356, 362, 404, 445, 505, 712, 724, 808, 890, 905, 1010, 1424, 1448, 1616, 1780, 1810, 2020, 2896, 3560, 3620, 4040, 7120, 7240, 8080, 8989, 14480, 16109, 17978, 18281, 32218, 35956, 36562, 44945, 64436, 71912, 73124, 80545, 89890, 91405, 128872, 143824, 146248, 161090, 179780, 182810, 257744, 292496, 322180, 359560, 365620, 644360, 719120, 731240, 1288720, 1462480, 1627009, 3254018, 6508036, 8135045, 13016072, 16270090, 26032144, 32540180, 65080360, 130160720]

約数ペア:

[(1, 130160720), (2, 65080360), (4, 32540180), (5, 26032144), (8, 16270090), (10, 13016072), (16, 8135045), (20, 6508036), (40, 3254018), (80, 1627009), (89, 1462480), (101, 1288720), (178, 731240), (181, 719120), (202, 644360), (356, 365620), (362, 359560), (404, 322180), (445, 292496), (505, 257744), (712, 182810), (724, 179780), (808, 161090), (890, 146248), (905, 143824), (1010, 128872), (1424, 91405), (1448, 89890), (1616, 80545), (1780, 73124), (1810, 71912), (2020, 64436), (2896, 44945), (3560, 36562), (3620, 35956), (4040, 32218), (7120, 18281), (7240, 17978), (8080, 16109), (8989, 14480)]