81909450

素因数分解:

$2^1\times 3^2\times 5^2\times 7^1\times {\mathrm{26003}}^1$

素因数の和:26028

約数の個数: 72

約数和(自身を含む): 251510688

約数和(自身を除く): 169601238

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 30, 35, 42, 45, 50, 63, 70, 75, 90, 105, 126, 150, 175, 210, 225, 315, 350, 450, 525, 630, 1050, 1575, 3150, 26003, 52006, 78009, 130015, 156018, 182021, 234027, 260030, 364042, 390045, 468054, 546063, 650075, 780090, 910105, 1092126, 1170135, 1300150, 1638189, 1820210, 1950225, 2340270, 2730315, 3276378, 3900450, 4550525, 5460630, 5850675, 8190945, 9101050, 11701350, 13651575, 16381890, 27303150, 40954725, 81909450]

約数ペア:

[(1, 81909450), (2, 40954725), (3, 27303150), (5, 16381890), (6, 13651575), (7, 11701350), (9, 9101050), (10, 8190945), (14, 5850675), (15, 5460630), (18, 4550525), (21, 3900450), (25, 3276378), (30, 2730315), (35, 2340270), (42, 1950225), (45, 1820210), (50, 1638189), (63, 1300150), (70, 1170135), (75, 1092126), (90, 910105), (105, 780090), (126, 650075), (150, 546063), (175, 468054), (210, 390045), (225, 364042), (315, 260030), (350, 234027), (450, 182021), (525, 156018), (630, 130015), (1050, 78009), (1575, 52006), (3150, 26003)]