261640152

素因数分解:

$2^3\times 3^3\times {\mathrm{491}}^1\times {\mathrm{2467}}^1$

素因数の和:2973

約数の個数: 64

約数和(自身を含む): 728553600

約数和(自身を除く): 466913448

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 216, 491, 982, 1473, 1964, 2467, 2946, 3928, 4419, 4934, 5892, 7401, 8838, 9868, 11784, 13257, 14802, 17676, 19736, 22203, 26514, 29604, 35352, 44406, 53028, 59208, 66609, 88812, 106056, 133218, 177624, 266436, 532872, 1211297, 2422594, 3633891, 4845188, 7267782, 9690376, 10901673, 14535564, 21803346, 29071128, 32705019, 43606692, 65410038, 87213384, 130820076, 261640152]

約数ペア:

[(1, 261640152), (2, 130820076), (3, 87213384), (4, 65410038), (6, 43606692), (8, 32705019), (9, 29071128), (12, 21803346), (18, 14535564), (24, 10901673), (27, 9690376), (36, 7267782), (54, 4845188), (72, 3633891), (108, 2422594), (216, 1211297), (491, 532872), (982, 266436), (1473, 177624), (1964, 133218), (2467, 106056), (2946, 88812), (3928, 66609), (4419, 59208), (4934, 53028), (5892, 44406), (7401, 35352), (8838, 29604), (9868, 26514), (11784, 22203), (13257, 19736), (14802, 17676)]