28685060

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{137}}^1$

素因数の和:213

約数の個数: 72

約数和(自身を含む): 66248280

約数和(自身を除く): 37563220

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 38, 58, 76, 95, 116, 137, 145, 190, 274, 290, 361, 380, 548, 551, 580, 685, 722, 1102, 1370, 1444, 1805, 2204, 2603, 2740, 2755, 3610, 3973, 5206, 5510, 7220, 7946, 10412, 10469, 11020, 13015, 15892, 19865, 20938, 26030, 39730, 41876, 49457, 52060, 52345, 75487, 79460, 98914, 104690, 150974, 197828, 209380, 247285, 301948, 377435, 494570, 754870, 989140, 1434253, 1509740, 2868506, 5737012, 7171265, 14342530, 28685060]

約数ペア:

[(1, 28685060), (2, 14342530), (4, 7171265), (5, 5737012), (10, 2868506), (19, 1509740), (20, 1434253), (29, 989140), (38, 754870), (58, 494570), (76, 377435), (95, 301948), (116, 247285), (137, 209380), (145, 197828), (190, 150974), (274, 104690), (290, 98914), (361, 79460), (380, 75487), (548, 52345), (551, 52060), (580, 49457), (685, 41876), (722, 39730), (1102, 26030), (1370, 20938), (1444, 19865), (1805, 15892), (2204, 13015), (2603, 11020), (2740, 10469), (2755, 10412), (3610, 7946), (3973, 7220), (5206, 5510)]