20007260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{10993}}^1$

素因数の和:11022

約数の個数: 48

約数和(自身を含む): 51715776

約数和(自身を除く): 31708516

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 10993, 21986, 43972, 54965, 76951, 109930, 142909, 153902, 219860, 285818, 307804, 384755, 571636, 714545, 769510, 1000363, 1429090, 1539020, 2000726, 2858180, 4001452, 5001815, 10003630, 20007260]

約数ペア:

[(1, 20007260), (2, 10003630), (4, 5001815), (5, 4001452), (7, 2858180), (10, 2000726), (13, 1539020), (14, 1429090), (20, 1000363), (26, 769510), (28, 714545), (35, 571636), (52, 384755), (65, 307804), (70, 285818), (91, 219860), (130, 153902), (140, 142909), (182, 109930), (260, 76951), (364, 54965), (455, 43972), (910, 21986), (1820, 10993)]