28134640

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{181}}^1$

素因数の和:290

約数の個数: 80

約数和(自身を含む): 69058080

約数和(自身を除く): 40923440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 67, 80, 116, 134, 145, 181, 232, 268, 290, 335, 362, 464, 536, 580, 670, 724, 905, 1072, 1160, 1340, 1448, 1810, 1943, 2320, 2680, 2896, 3620, 3886, 5249, 5360, 7240, 7772, 9715, 10498, 12127, 14480, 15544, 19430, 20996, 24254, 26245, 31088, 38860, 41992, 48508, 52490, 60635, 77720, 83984, 97016, 104980, 121270, 155440, 194032, 209960, 242540, 351683, 419920, 485080, 703366, 970160, 1406732, 1758415, 2813464, 3516830, 5626928, 7033660, 14067320, 28134640]

約数ペア:

[(1, 28134640), (2, 14067320), (4, 7033660), (5, 5626928), (8, 3516830), (10, 2813464), (16, 1758415), (20, 1406732), (29, 970160), (40, 703366), (58, 485080), (67, 419920), (80, 351683), (116, 242540), (134, 209960), (145, 194032), (181, 155440), (232, 121270), (268, 104980), (290, 97016), (335, 83984), (362, 77720), (464, 60635), (536, 52490), (580, 48508), (670, 41992), (724, 38860), (905, 31088), (1072, 26245), (1160, 24254), (1340, 20996), (1448, 19430), (1810, 15544), (1943, 14480), (2320, 12127), (2680, 10498), (2896, 9715), (3620, 7772), (3886, 7240), (5249, 5360)]