79884800

素因数分解:

$2^9\times 5^2\times {\mathrm{79}}^2$

素因数の和:186

約数の個数: 90

約数和(自身を含む): 200457873

約数和(自身を除く): 120573073

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 79, 80, 100, 128, 158, 160, 200, 256, 316, 320, 395, 400, 512, 632, 640, 790, 800, 1264, 1280, 1580, 1600, 1975, 2528, 2560, 3160, 3200, 3950, 5056, 6241, 6320, 6400, 7900, 10112, 12482, 12640, 12800, 15800, 20224, 24964, 25280, 31205, 31600, 40448, 49928, 50560, 62410, 63200, 99856, 101120, 124820, 126400, 156025, 199712, 202240, 249640, 252800, 312050, 399424, 499280, 505600, 624100, 798848, 998560, 1011200, 1248200, 1597696, 1997120, 2496400, 3195392, 3994240, 4992800, 7988480, 9985600, 15976960, 19971200, 39942400, 79884800]

約数ペア:

[(1, 79884800), (2, 39942400), (4, 19971200), (5, 15976960), (8, 9985600), (10, 7988480), (16, 4992800), (20, 3994240), (25, 3195392), (32, 2496400), (40, 1997120), (50, 1597696), (64, 1248200), (79, 1011200), (80, 998560), (100, 798848), (128, 624100), (158, 505600), (160, 499280), (200, 399424), (256, 312050), (316, 252800), (320, 249640), (395, 202240), (400, 199712), (512, 156025), (632, 126400), (640, 124820), (790, 101120), (800, 99856), (1264, 63200), (1280, 62410), (1580, 50560), (1600, 49928), (1975, 40448), (2528, 31600), (2560, 31205), (3160, 25280), (3200, 24964), (3950, 20224), (5056, 15800), (6241, 12800), (6320, 12640), (6400, 12482), (7900, 10112)]