39486520

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{16183}}^1$

素因数の和:16255

約数の個数: 32

約数和(自身を含む): 90306720

約数和(自身を除く): 50820200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 16183, 32366, 64732, 80915, 129464, 161830, 323660, 647320, 987163, 1974326, 3948652, 4935815, 7897304, 9871630, 19743260, 39486520]

約数ペア:

[(1, 39486520), (2, 19743260), (4, 9871630), (5, 7897304), (8, 4935815), (10, 3948652), (20, 1974326), (40, 987163), (61, 647320), (122, 323660), (244, 161830), (305, 129464), (488, 80915), (610, 64732), (1220, 32366), (2440, 16183)]