31591885

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1$

素因数の和:277

約数の個数: 32

約数和(自身を含む): 42577920

約数和(自身を除く): 10986035

約数列:

[1, 5, 13, 43, 65, 89, 127, 215, 445, 559, 635, 1157, 1651, 2795, 3827, 5461, 5785, 8255, 11303, 19135, 27305, 49751, 56515, 70993, 146939, 248755, 354965, 486029, 734695, 2430145, 6318377, 31591885]

約数ペア:

[(1, 31591885), (5, 6318377), (13, 2430145), (43, 734695), (65, 486029), (89, 354965), (127, 248755), (215, 146939), (445, 70993), (559, 56515), (635, 49751), (1157, 27305), (1651, 19135), (2795, 11303), (3827, 8255), (5461, 5785)]