20904450

素因数分解:

$2^1\times 3^1\times 5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{463}}^1$

素因数の和:528

約数の個数: 96

約数和(自身を含む): 60758016

約数和(自身を除く): 39853566

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 35, 42, 43, 50, 70, 75, 86, 105, 129, 150, 175, 210, 215, 258, 301, 350, 430, 463, 525, 602, 645, 903, 926, 1050, 1075, 1290, 1389, 1505, 1806, 2150, 2315, 2778, 3010, 3225, 3241, 4515, 4630, 6450, 6482, 6945, 7525, 9030, 9723, 11575, 13890, 15050, 16205, 19446, 19909, 22575, 23150, 32410, 34725, 39818, 45150, 48615, 59727, 69450, 81025, 97230, 99545, 119454, 139363, 162050, 199090, 243075, 278726, 298635, 418089, 486150, 497725, 597270, 696815, 836178, 995450, 1393630, 1493175, 2090445, 2986350, 3484075, 4180890, 6968150, 10452225, 20904450]

約数ペア:

[(1, 20904450), (2, 10452225), (3, 6968150), (5, 4180890), (6, 3484075), (7, 2986350), (10, 2090445), (14, 1493175), (15, 1393630), (21, 995450), (25, 836178), (30, 696815), (35, 597270), (42, 497725), (43, 486150), (50, 418089), (70, 298635), (75, 278726), (86, 243075), (105, 199090), (129, 162050), (150, 139363), (175, 119454), (210, 99545), (215, 97230), (258, 81025), (301, 69450), (350, 59727), (430, 48615), (463, 45150), (525, 39818), (602, 34725), (645, 32410), (903, 23150), (926, 22575), (1050, 19909), (1075, 19446), (1290, 16205), (1389, 15050), (1505, 13890), (1806, 11575), (2150, 9723), (2315, 9030), (2778, 7525), (3010, 6945), (3225, 6482), (3241, 6450), (4515, 4630)]