638863668

素因数分解:

$2^2\times 3^2\times {\mathrm{47}}^1\times {\mathrm{491}}^1\times {\mathrm{769}}^1$

素因数の和:1317

約数の個数: 72

約数和(自身を含む): 1654773120

約数和(自身を除く): 1015909452

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 47, 94, 141, 188, 282, 423, 491, 564, 769, 846, 982, 1473, 1538, 1692, 1964, 2307, 2946, 3076, 4419, 4614, 5892, 6921, 8838, 9228, 13842, 17676, 23077, 27684, 36143, 46154, 69231, 72286, 92308, 108429, 138462, 144572, 207693, 216858, 276924, 325287, 377579, 415386, 433716, 650574, 755158, 830772, 1132737, 1301148, 1510316, 2265474, 3398211, 4530948, 6796422, 13592844, 17746213, 35492426, 53238639, 70984852, 106477278, 159715917, 212954556, 319431834, 638863668]

約数ペア:

[(1, 638863668), (2, 319431834), (3, 212954556), (4, 159715917), (6, 106477278), (9, 70984852), (12, 53238639), (18, 35492426), (36, 17746213), (47, 13592844), (94, 6796422), (141, 4530948), (188, 3398211), (282, 2265474), (423, 1510316), (491, 1301148), (564, 1132737), (769, 830772), (846, 755158), (982, 650574), (1473, 433716), (1538, 415386), (1692, 377579), (1964, 325287), (2307, 276924), (2946, 216858), (3076, 207693), (4419, 144572), (4614, 138462), (5892, 108429), (6921, 92308), (8838, 72286), (9228, 69231), (13842, 46154), (17676, 36143), (23077, 27684)]