81369780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{521}}^1$

素因数の和:689

約数の個数: 96

約数和(自身を含む): 242040960

約数和(自身を除く): 160671180

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 137, 190, 228, 274, 285, 380, 411, 521, 548, 570, 685, 822, 1042, 1140, 1370, 1563, 1644, 2055, 2084, 2603, 2605, 2740, 3126, 4110, 5206, 5210, 6252, 7809, 7815, 8220, 9899, 10412, 10420, 13015, 15618, 15630, 19798, 26030, 29697, 31236, 31260, 39045, 39596, 49495, 52060, 59394, 71377, 78090, 98990, 118788, 142754, 148485, 156180, 197980, 214131, 285508, 296970, 356885, 428262, 593940, 713770, 856524, 1070655, 1356163, 1427540, 2141310, 2712326, 4068489, 4282620, 5424652, 6780815, 8136978, 13561630, 16273956, 20342445, 27123260, 40684890, 81369780]

約数ペア:

[(1, 81369780), (2, 40684890), (3, 27123260), (4, 20342445), (5, 16273956), (6, 13561630), (10, 8136978), (12, 6780815), (15, 5424652), (19, 4282620), (20, 4068489), (30, 2712326), (38, 2141310), (57, 1427540), (60, 1356163), (76, 1070655), (95, 856524), (114, 713770), (137, 593940), (190, 428262), (228, 356885), (274, 296970), (285, 285508), (380, 214131), (411, 197980), (521, 156180), (548, 148485), (570, 142754), (685, 118788), (822, 98990), (1042, 78090), (1140, 71377), (1370, 59394), (1563, 52060), (1644, 49495), (2055, 39596), (2084, 39045), (2603, 31260), (2605, 31236), (2740, 29697), (3126, 26030), (4110, 19798), (5206, 15630), (5210, 15618), (6252, 13015), (7809, 10420), (7815, 10412), (8220, 9899)]