81491994

素因数分解:

$2^1\times 3^7\times {\mathrm{31}}^1\times {\mathrm{601}}^1$

素因数の和:655

約数の個数: 64

約数和(自身を含む): 189557760

約数和(自身を除く): 108065766

約数列:

[1, 2, 3, 6, 9, 18, 27, 31, 54, 62, 81, 93, 162, 186, 243, 279, 486, 558, 601, 729, 837, 1202, 1458, 1674, 1803, 2187, 2511, 3606, 4374, 5022, 5409, 7533, 10818, 15066, 16227, 18631, 22599, 32454, 37262, 45198, 48681, 55893, 67797, 97362, 111786, 135594, 146043, 167679, 292086, 335358, 438129, 503037, 876258, 1006074, 1314387, 1509111, 2628774, 3018222, 4527333, 9054666, 13581999, 27163998, 40745997, 81491994]

約数ペア:

[(1, 81491994), (2, 40745997), (3, 27163998), (6, 13581999), (9, 9054666), (18, 4527333), (27, 3018222), (31, 2628774), (54, 1509111), (62, 1314387), (81, 1006074), (93, 876258), (162, 503037), (186, 438129), (243, 335358), (279, 292086), (486, 167679), (558, 146043), (601, 135594), (729, 111786), (837, 97362), (1202, 67797), (1458, 55893), (1674, 48681), (1803, 45198), (2187, 37262), (2511, 32454), (3606, 22599), (4374, 18631), (5022, 16227), (5409, 15066), (7533, 10818)]