20030985

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{353}}^1$

素因数の和:474

約数の個数: 48

約数和(自身を含む): 37883664

約数和(自身を除く): 17852679

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 97, 117, 195, 291, 353, 485, 585, 873, 1059, 1261, 1455, 1765, 3177, 3783, 4365, 4589, 5295, 6305, 11349, 13767, 15885, 18915, 22945, 34241, 41301, 56745, 68835, 102723, 171205, 206505, 308169, 445133, 513615, 1335399, 1540845, 2225665, 4006197, 6676995, 20030985]

約数ペア:

[(1, 20030985), (3, 6676995), (5, 4006197), (9, 2225665), (13, 1540845), (15, 1335399), (39, 513615), (45, 445133), (65, 308169), (97, 206505), (117, 171205), (195, 102723), (291, 68835), (353, 56745), (485, 41301), (585, 34241), (873, 22945), (1059, 18915), (1261, 15885), (1455, 13767), (1765, 11349), (3177, 6305), (3783, 5295), (4365, 4589)]