405570820

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{251}}^1\times {\mathrm{467}}^1$

素因数の和:900

約数の個数: 48

約数和(自身を含む): 861876288

約数和(自身を除く): 456305468

約数列:

[1, 2, 4, 5, 10, 20, 173, 251, 346, 467, 502, 692, 865, 934, 1004, 1255, 1730, 1868, 2335, 2510, 3460, 4670, 5020, 9340, 43423, 80791, 86846, 117217, 161582, 173692, 217115, 234434, 323164, 403955, 434230, 468868, 586085, 807910, 868460, 1172170, 1615820, 2344340, 20278541, 40557082, 81114164, 101392705, 202785410, 405570820]

約数ペア:

[(1, 405570820), (2, 202785410), (4, 101392705), (5, 81114164), (10, 40557082), (20, 20278541), (173, 2344340), (251, 1615820), (346, 1172170), (467, 868460), (502, 807910), (692, 586085), (865, 468868), (934, 434230), (1004, 403955), (1255, 323164), (1730, 234434), (1868, 217115), (2335, 173692), (2510, 161582), (3460, 117217), (4670, 86846), (5020, 80791), (9340, 43423)]