18648860

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{571}}^1$

素因数の和:674

約数の個数: 48

約数和(自身を含む): 41513472

約数和(自身を除く): 22864612

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 71, 92, 115, 142, 230, 284, 355, 460, 571, 710, 1142, 1420, 1633, 2284, 2855, 3266, 5710, 6532, 8165, 11420, 13133, 16330, 26266, 32660, 40541, 52532, 65665, 81082, 131330, 162164, 202705, 262660, 405410, 810820, 932443, 1864886, 3729772, 4662215, 9324430, 18648860]

約数ペア:

[(1, 18648860), (2, 9324430), (4, 4662215), (5, 3729772), (10, 1864886), (20, 932443), (23, 810820), (46, 405410), (71, 262660), (92, 202705), (115, 162164), (142, 131330), (230, 81082), (284, 65665), (355, 52532), (460, 40541), (571, 32660), (710, 26266), (1142, 16330), (1420, 13133), (1633, 11420), (2284, 8165), (2855, 6532), (3266, 5710)]