28173520

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{4243}}^1$

素因数の和:4339

約数の個数: 40

約数和(自身を含む): 66308256

約数和(自身を除く): 38134736

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 166, 332, 415, 664, 830, 1328, 1660, 3320, 4243, 6640, 8486, 16972, 21215, 33944, 42430, 67888, 84860, 169720, 339440, 352169, 704338, 1408676, 1760845, 2817352, 3521690, 5634704, 7043380, 14086760, 28173520]

約数ペア:

[(1, 28173520), (2, 14086760), (4, 7043380), (5, 5634704), (8, 3521690), (10, 2817352), (16, 1760845), (20, 1408676), (40, 704338), (80, 352169), (83, 339440), (166, 169720), (332, 84860), (415, 67888), (664, 42430), (830, 33944), (1328, 21215), (1660, 16972), (3320, 8486), (4243, 6640)]