27854540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{661}}^1$

素因数の和:727

約数の個数: 72

約数和(自身を含む): 69732432

約数和(自身を除く): 41877892

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 49, 70, 86, 98, 140, 172, 196, 215, 245, 301, 430, 490, 602, 661, 860, 980, 1204, 1322, 1505, 2107, 2644, 3010, 3305, 4214, 4627, 6020, 6610, 8428, 9254, 10535, 13220, 18508, 21070, 23135, 28423, 32389, 42140, 46270, 56846, 64778, 92540, 113692, 129556, 142115, 161945, 198961, 284230, 323890, 397922, 568460, 647780, 795844, 994805, 1392727, 1989610, 2785454, 3979220, 5570908, 6963635, 13927270, 27854540]

約数ペア:

[(1, 27854540), (2, 13927270), (4, 6963635), (5, 5570908), (7, 3979220), (10, 2785454), (14, 1989610), (20, 1392727), (28, 994805), (35, 795844), (43, 647780), (49, 568460), (70, 397922), (86, 323890), (98, 284230), (140, 198961), (172, 161945), (196, 142115), (215, 129556), (245, 113692), (301, 92540), (430, 64778), (490, 56846), (602, 46270), (661, 42140), (860, 32389), (980, 28423), (1204, 23135), (1322, 21070), (1505, 18508), (2107, 13220), (2644, 10535), (3010, 9254), (3305, 8428), (4214, 6610), (4627, 6020)]