81969690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{1787}}^1$

素因数の和:1947

約数の個数: 64

約数和(自身を含む): 216276480

約数和(自身を除く): 134306790

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 139, 165, 278, 330, 417, 695, 834, 1390, 1529, 1787, 2085, 3058, 3574, 4170, 4587, 5361, 7645, 8935, 9174, 10722, 15290, 17870, 19657, 22935, 26805, 39314, 45870, 53610, 58971, 98285, 117942, 196570, 248393, 294855, 496786, 589710, 745179, 1241965, 1490358, 2483930, 2732323, 3725895, 5464646, 7451790, 8196969, 13661615, 16393938, 27323230, 40984845, 81969690]

約数ペア:

[(1, 81969690), (2, 40984845), (3, 27323230), (5, 16393938), (6, 13661615), (10, 8196969), (11, 7451790), (15, 5464646), (22, 3725895), (30, 2732323), (33, 2483930), (55, 1490358), (66, 1241965), (110, 745179), (139, 589710), (165, 496786), (278, 294855), (330, 248393), (417, 196570), (695, 117942), (834, 98285), (1390, 58971), (1529, 53610), (1787, 45870), (2085, 39314), (3058, 26805), (3574, 22935), (4170, 19657), (4587, 17870), (5361, 15290), (7645, 10722), (8935, 9174)]