538009340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{78887}}^1$

素因数の和:78938

約数の個数: 48

約数和(自身を含む): 1272305664

約数和(自身を除く): 734296324

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 620, 682, 1364, 1705, 3410, 6820, 78887, 157774, 315548, 394435, 788870, 867757, 1577740, 1735514, 2445497, 3471028, 4338785, 4890994, 8677570, 9781988, 12227485, 17355140, 24454970, 26900467, 48909940, 53800934, 107601868, 134502335, 269004670, 538009340]

約数ペア:

[(1, 538009340), (2, 269004670), (4, 134502335), (5, 107601868), (10, 53800934), (11, 48909940), (20, 26900467), (22, 24454970), (31, 17355140), (44, 12227485), (55, 9781988), (62, 8677570), (110, 4890994), (124, 4338785), (155, 3471028), (220, 2445497), (310, 1735514), (341, 1577740), (620, 867757), (682, 788870), (1364, 394435), (1705, 315548), (3410, 157774), (6820, 78887)]