31873720

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{13063}}^1$

素因数の和:13135

約数の個数: 32

約数和(自身を含む): 72897120

約数和(自身を除く): 41023400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 13063, 26126, 52252, 65315, 104504, 130630, 261260, 522520, 796843, 1593686, 3187372, 3984215, 6374744, 7968430, 15936860, 31873720]

約数ペア:

[(1, 31873720), (2, 15936860), (4, 7968430), (5, 6374744), (8, 3984215), (10, 3187372), (20, 1593686), (40, 796843), (61, 522520), (122, 261260), (244, 130630), (305, 104504), (488, 65315), (610, 52252), (1220, 26126), (2440, 13063)]