317507840

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19081}}^1$

素因数の和:19115

約数の個数: 72

約数和(自身を含む): 819075768

約数和(自身を除く): 501567928

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, 19081, 38162, 76324, 95405, 152648, 190810, 248053, 305296, 381620, 496106, 610592, 763240, 992212, 1221184, 1240265, 1526480, 1984424, 2442368, 2480530, 3052960, 3968848, 4884736, 4961060, 6105920, 7937696, 9922120, 12211840, 15875392, 19844240, 24423680, 31750784, 39688480, 63501568, 79376960, 158753920, 317507840]

約数ペア:

[(1, 317507840), (2, 158753920), (4, 79376960), (5, 63501568), (8, 39688480), (10, 31750784), (13, 24423680), (16, 19844240), (20, 15875392), (26, 12211840), (32, 9922120), (40, 7937696), (52, 6105920), (64, 4961060), (65, 4884736), (80, 3968848), (104, 3052960), (128, 2480530), (130, 2442368), (160, 1984424), (208, 1526480), (256, 1240265), (260, 1221184), (320, 992212), (416, 763240), (520, 610592), (640, 496106), (832, 381620), (1040, 305296), (1280, 248053), (1664, 190810), (2080, 152648), (3328, 95405), (4160, 76324), (8320, 38162), (16640, 19081)]