72115720

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43973}}^1$

素因数の和:44025

約数の個数: 32

約数和(自身を含む): 166221720

約数和(自身を除く): 94106000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 43973, 87946, 175892, 219865, 351784, 439730, 879460, 1758920, 1802893, 3605786, 7211572, 9014465, 14423144, 18028930, 36057860, 72115720]

約数ペア:

[(1, 72115720), (2, 36057860), (4, 18028930), (5, 14423144), (8, 9014465), (10, 7211572), (20, 3605786), (40, 1802893), (41, 1758920), (82, 879460), (164, 439730), (205, 351784), (328, 219865), (410, 175892), (820, 87946), (1640, 43973)]