312881920

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18803}}^1$

素因数の和:18837

約数の個数: 72

約数和(自身を含む): 807142896

約数和(自身を除く): 494260976

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1040, 1280, 1664, 2080, 3328, 4160, 8320, 16640, 18803, 37606, 75212, 94015, 150424, 188030, 244439, 300848, 376060, 488878, 601696, 752120, 977756, 1203392, 1222195, 1504240, 1955512, 2406784, 2444390, 3008480, 3911024, 4813568, 4888780, 6016960, 7822048, 9777560, 12033920, 15644096, 19555120, 24067840, 31288192, 39110240, 62576384, 78220480, 156440960, 312881920]

約数ペア:

[(1, 312881920), (2, 156440960), (4, 78220480), (5, 62576384), (8, 39110240), (10, 31288192), (13, 24067840), (16, 19555120), (20, 15644096), (26, 12033920), (32, 9777560), (40, 7822048), (52, 6016960), (64, 4888780), (65, 4813568), (80, 3911024), (104, 3008480), (128, 2444390), (130, 2406784), (160, 1955512), (208, 1504240), (256, 1222195), (260, 1203392), (320, 977756), (416, 752120), (520, 601696), (640, 488878), (832, 376060), (1040, 300848), (1280, 244439), (1664, 188030), (2080, 150424), (3328, 94015), (4160, 75212), (8320, 37606), (16640, 18803)]