81985390

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{331}}^1$

素因数の和:433

約数の個数: 64

約数和(自身を含む): 165224448

約数和(自身を除く): 83239058

約数列:

[1, 2, 5, 10, 17, 31, 34, 47, 62, 85, 94, 155, 170, 235, 310, 331, 470, 527, 662, 799, 1054, 1457, 1598, 1655, 2635, 2914, 3310, 3995, 5270, 5627, 7285, 7990, 10261, 11254, 14570, 15557, 20522, 24769, 28135, 31114, 49538, 51305, 56270, 77785, 102610, 123845, 155570, 174437, 247690, 264469, 348874, 482267, 528938, 872185, 964534, 1322345, 1744370, 2411335, 2644690, 4822670, 8198539, 16397078, 40992695, 81985390]

約数ペア:

[(1, 81985390), (2, 40992695), (5, 16397078), (10, 8198539), (17, 4822670), (31, 2644690), (34, 2411335), (47, 1744370), (62, 1322345), (85, 964534), (94, 872185), (155, 528938), (170, 482267), (235, 348874), (310, 264469), (331, 247690), (470, 174437), (527, 155570), (662, 123845), (799, 102610), (1054, 77785), (1457, 56270), (1598, 51305), (1655, 49538), (2635, 31114), (2914, 28135), (3310, 24769), (3995, 20522), (5270, 15557), (5627, 14570), (7285, 11254), (7990, 10261)]