64739825

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{179}}^1$

素因数の和:266

約数の個数: 48

約数和(自身を含む): 91601280

約数和(自身を除く): 26861455

約数列:

[1, 5, 17, 23, 25, 37, 85, 115, 179, 185, 391, 425, 575, 629, 851, 895, 925, 1955, 3043, 3145, 4117, 4255, 4475, 6623, 9775, 14467, 15215, 15725, 20585, 21275, 33115, 69989, 72335, 76075, 102925, 112591, 152329, 165575, 349945, 361675, 562955, 761645, 1749725, 2589593, 2814775, 3808225, 12947965, 64739825]

約数ペア:

[(1, 64739825), (5, 12947965), (17, 3808225), (23, 2814775), (25, 2589593), (37, 1749725), (85, 761645), (115, 562955), (179, 361675), (185, 349945), (391, 165575), (425, 152329), (575, 112591), (629, 102925), (851, 76075), (895, 72335), (925, 69989), (1955, 33115), (3043, 21275), (3145, 20585), (4117, 15725), (4255, 15215), (4475, 14467), (6623, 9775)]