640378992

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{1212839}}^1$

素因数の和:1212861

約数の個数: 40

約数和(自身を含む): 1804705920

約数和(自身を除く): 1164326928

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 44, 48, 66, 88, 132, 176, 264, 528, 1212839, 2425678, 3638517, 4851356, 7277034, 9702712, 13341229, 14554068, 19405424, 26682458, 29108136, 40023687, 53364916, 58216272, 80047374, 106729832, 160094748, 213459664, 320189496, 640378992]

約数ペア:

[(1, 640378992), (2, 320189496), (3, 213459664), (4, 160094748), (6, 106729832), (8, 80047374), (11, 58216272), (12, 53364916), (16, 40023687), (22, 29108136), (24, 26682458), (33, 19405424), (44, 14554068), (48, 13341229), (66, 9702712), (88, 7277034), (132, 4851356), (176, 3638517), (264, 2425678), (528, 1212839)]