636249520

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{130379}}^1$

素因数の和:130453

約数の個数: 40

約数和(自身を含む): 1503542160

約数和(自身を除く): 867292640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 130379, 260758, 521516, 651895, 1043032, 1303790, 2086064, 2607580, 5215160, 7953119, 10430320, 15906238, 31812476, 39765595, 63624952, 79531190, 127249904, 159062380, 318124760, 636249520]

約数ペア:

[(1, 636249520), (2, 318124760), (4, 159062380), (5, 127249904), (8, 79531190), (10, 63624952), (16, 39765595), (20, 31812476), (40, 15906238), (61, 10430320), (80, 7953119), (122, 5215160), (244, 2607580), (305, 2086064), (488, 1303790), (610, 1043032), (976, 651895), (1220, 521516), (2440, 260758), (4880, 130379)]