81965790

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{197}}^1$

素因数の和:303

約数の個数: 128

約数和(自身を含む): 232657920

約数和(自身を除く): 150692130

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 27, 30, 45, 46, 54, 67, 69, 90, 115, 134, 135, 138, 197, 201, 207, 230, 270, 335, 345, 394, 402, 414, 591, 603, 621, 670, 690, 985, 1005, 1035, 1182, 1206, 1242, 1541, 1773, 1809, 1970, 2010, 2070, 2955, 3015, 3082, 3105, 3546, 3618, 4531, 4623, 5319, 5910, 6030, 6210, 7705, 8865, 9045, 9062, 9246, 10638, 13199, 13593, 13869, 15410, 17730, 18090, 22655, 23115, 26398, 26595, 27186, 27738, 39597, 40779, 41607, 45310, 46230, 53190, 65995, 67965, 69345, 79194, 81558, 83214, 118791, 122337, 131990, 135930, 138690, 197985, 203895, 208035, 237582, 244674, 303577, 356373, 395970, 407790, 416070, 593955, 607154, 611685, 712746, 910731, 1187910, 1223370, 1517885, 1781865, 1821462, 2732193, 3035770, 3563730, 4553655, 5464386, 8196579, 9107310, 13660965, 16393158, 27321930, 40982895, 81965790]

約数ペア:

[(1, 81965790), (2, 40982895), (3, 27321930), (5, 16393158), (6, 13660965), (9, 9107310), (10, 8196579), (15, 5464386), (18, 4553655), (23, 3563730), (27, 3035770), (30, 2732193), (45, 1821462), (46, 1781865), (54, 1517885), (67, 1223370), (69, 1187910), (90, 910731), (115, 712746), (134, 611685), (135, 607154), (138, 593955), (197, 416070), (201, 407790), (207, 395970), (230, 356373), (270, 303577), (335, 244674), (345, 237582), (394, 208035), (402, 203895), (414, 197985), (591, 138690), (603, 135930), (621, 131990), (670, 122337), (690, 118791), (985, 83214), (1005, 81558), (1035, 79194), (1182, 69345), (1206, 67965), (1242, 65995), (1541, 53190), (1773, 46230), (1809, 45310), (1970, 41607), (2010, 40779), (2070, 39597), (2955, 27738), (3015, 27186), (3082, 26595), (3105, 26398), (3546, 23115), (3618, 22655), (4531, 18090), (4623, 17730), (5319, 15410), (5910, 13869), (6030, 13593), (6210, 13199), (7705, 10638), (8865, 9246), (9045, 9062)]