72171440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{82013}}^1$

素因数の和:82037

約数の個数: 40

約数和(自身を含む): 183055248

約数和(自身を除く): 110883808

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 82013, 164026, 328052, 410065, 656104, 820130, 902143, 1312208, 1640260, 1804286, 3280520, 3608572, 4510715, 6561040, 7217144, 9021430, 14434288, 18042860, 36085720, 72171440]

約数ペア:

[(1, 72171440), (2, 36085720), (4, 18042860), (5, 14434288), (8, 9021430), (10, 7217144), (11, 6561040), (16, 4510715), (20, 3608572), (22, 3280520), (40, 1804286), (44, 1640260), (55, 1312208), (80, 902143), (88, 820130), (110, 656104), (176, 410065), (220, 328052), (440, 164026), (880, 82013)]