256223745

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{4999}}^1$

素因数の和:5094

約数の個数: 48

約数和(自身を含む): 477360000

約数和(自身を除く): 221136255

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 67, 85, 153, 201, 255, 335, 603, 765, 1005, 1139, 3015, 3417, 4999, 5695, 10251, 14997, 17085, 24995, 44991, 51255, 74985, 84983, 224955, 254949, 334933, 424915, 764847, 1004799, 1274745, 1674665, 3014397, 3824235, 5023995, 5693861, 15071985, 17081583, 28469305, 51244749, 85407915, 256223745]

約数ペア:

[(1, 256223745), (3, 85407915), (5, 51244749), (9, 28469305), (15, 17081583), (17, 15071985), (45, 5693861), (51, 5023995), (67, 3824235), (85, 3014397), (153, 1674665), (201, 1274745), (255, 1004799), (335, 764847), (603, 424915), (765, 334933), (1005, 254949), (1139, 224955), (3015, 84983), (3417, 74985), (4999, 51255), (5695, 44991), (10251, 24995), (14997, 17085)]