28798720

素因数分解:

$2^8\times 5^1\times {\mathrm{149}}^1\times {\mathrm{151}}^1$

素因数の和:321

約数の個数: 72

約数和(自身を含む): 69904800

約数和(自身を除く): 41106080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 149, 151, 160, 256, 298, 302, 320, 596, 604, 640, 745, 755, 1192, 1208, 1280, 1490, 1510, 2384, 2416, 2980, 3020, 4768, 4832, 5960, 6040, 9536, 9664, 11920, 12080, 19072, 19328, 22499, 23840, 24160, 38144, 38656, 44998, 47680, 48320, 89996, 95360, 96640, 112495, 179992, 190720, 193280, 224990, 359984, 449980, 719968, 899960, 1439936, 1799920, 2879872, 3599840, 5759744, 7199680, 14399360, 28798720]

約数ペア:

[(1, 28798720), (2, 14399360), (4, 7199680), (5, 5759744), (8, 3599840), (10, 2879872), (16, 1799920), (20, 1439936), (32, 899960), (40, 719968), (64, 449980), (80, 359984), (128, 224990), (149, 193280), (151, 190720), (160, 179992), (256, 112495), (298, 96640), (302, 95360), (320, 89996), (596, 48320), (604, 47680), (640, 44998), (745, 38656), (755, 38144), (1192, 24160), (1208, 23840), (1280, 22499), (1490, 19328), (1510, 19072), (2384, 12080), (2416, 11920), (2980, 9664), (3020, 9536), (4768, 6040), (4832, 5960)]