66852640

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{21991}}^1$

素因数の和:22025

約数の個数: 48

約数和(自身を含む): 166259520

約数和(自身を除く): 99406880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 21991, 43982, 87964, 109955, 175928, 219910, 351856, 417829, 439820, 703712, 835658, 879640, 1671316, 1759280, 2089145, 3342632, 3518560, 4178290, 6685264, 8356580, 13370528, 16713160, 33426320, 66852640]

約数ペア:

[(1, 66852640), (2, 33426320), (4, 16713160), (5, 13370528), (8, 8356580), (10, 6685264), (16, 4178290), (19, 3518560), (20, 3342632), (32, 2089145), (38, 1759280), (40, 1671316), (76, 879640), (80, 835658), (95, 703712), (152, 439820), (160, 417829), (190, 351856), (304, 219910), (380, 175928), (608, 109955), (760, 87964), (1520, 43982), (3040, 21991)]