72638240

素因数分解:

$2^5\times 5^1\times {\mathrm{89}}^1\times {\mathrm{5101}}^1$

素因数の和:5205

約数の個数: 48

約数和(自身を含む): 173570040

約数和(自身を除く): 100931800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 89, 160, 178, 356, 445, 712, 890, 1424, 1780, 2848, 3560, 5101, 7120, 10202, 14240, 20404, 25505, 40808, 51010, 81616, 102020, 163232, 204040, 408080, 453989, 816160, 907978, 1815956, 2269945, 3631912, 4539890, 7263824, 9079780, 14527648, 18159560, 36319120, 72638240]

約数ペア:

[(1, 72638240), (2, 36319120), (4, 18159560), (5, 14527648), (8, 9079780), (10, 7263824), (16, 4539890), (20, 3631912), (32, 2269945), (40, 1815956), (80, 907978), (89, 816160), (160, 453989), (178, 408080), (356, 204040), (445, 163232), (712, 102020), (890, 81616), (1424, 51010), (1780, 40808), (2848, 25505), (3560, 20404), (5101, 14240), (7120, 10202)]