21408327760

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{773}}^1\times {\mathrm{5167}}^1$

素因数の和:6020

約数の個数: 80

約数和(自身を含む): 50592404736

約数和(自身を除く): 29184076976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 773, 1072, 1340, 1546, 2680, 3092, 3865, 5167, 5360, 6184, 7730, 10334, 12368, 15460, 20668, 25835, 30920, 41336, 51670, 51791, 61840, 82672, 103340, 103582, 206680, 207164, 258955, 346189, 413360, 414328, 517910, 692378, 828656, 1035820, 1384756, 1730945, 2071640, 2769512, 3461890, 3994091, 4143280, 5539024, 6923780, 7988182, 13847560, 15976364, 19970455, 27695120, 31952728, 39940910, 63905456, 79881820, 159763640, 267604097, 319527280, 535208194, 1070416388, 1338020485, 2140832776, 2676040970, 4281665552, 5352081940, 10704163880, 21408327760]

約数ペア:

[(1, 21408327760), (2, 10704163880), (4, 5352081940), (5, 4281665552), (8, 2676040970), (10, 2140832776), (16, 1338020485), (20, 1070416388), (40, 535208194), (67, 319527280), (80, 267604097), (134, 159763640), (268, 79881820), (335, 63905456), (536, 39940910), (670, 31952728), (773, 27695120), (1072, 19970455), (1340, 15976364), (1546, 13847560), (2680, 7988182), (3092, 6923780), (3865, 5539024), (5167, 4143280), (5360, 3994091), (6184, 3461890), (7730, 2769512), (10334, 2071640), (12368, 1730945), (15460, 1384756), (20668, 1035820), (25835, 828656), (30920, 692378), (41336, 517910), (51670, 414328), (51791, 413360), (61840, 346189), (82672, 258955), (103340, 207164), (103582, 206680)]