20826930

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{647}}^1$

素因数の和:723

約数の個数: 64

約数和(自身を含む): 53187840

約数和(自身を除く): 32360910

約数列:

[1, 2, 3, 5, 6, 10, 15, 29, 30, 37, 58, 74, 87, 111, 145, 174, 185, 222, 290, 370, 435, 555, 647, 870, 1073, 1110, 1294, 1941, 2146, 3219, 3235, 3882, 5365, 6438, 6470, 9705, 10730, 16095, 18763, 19410, 23939, 32190, 37526, 47878, 56289, 71817, 93815, 112578, 119695, 143634, 187630, 239390, 281445, 359085, 562890, 694231, 718170, 1388462, 2082693, 3471155, 4165386, 6942310, 10413465, 20826930]

約数ペア:

[(1, 20826930), (2, 10413465), (3, 6942310), (5, 4165386), (6, 3471155), (10, 2082693), (15, 1388462), (29, 718170), (30, 694231), (37, 562890), (58, 359085), (74, 281445), (87, 239390), (111, 187630), (145, 143634), (174, 119695), (185, 112578), (222, 93815), (290, 71817), (370, 56289), (435, 47878), (555, 37526), (647, 32190), (870, 23939), (1073, 19410), (1110, 18763), (1294, 16095), (1941, 10730), (2146, 9705), (3219, 6470), (3235, 6438), (3882, 5365)]