1406726680

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{30661}}^1$

素因数の和:30740

約数の個数: 64

約数和(自身を含む): 3355649280

約数和(自身を除く): 1948922600

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 37, 40, 62, 74, 124, 148, 155, 185, 248, 296, 310, 370, 620, 740, 1147, 1240, 1480, 2294, 4588, 5735, 9176, 11470, 22940, 30661, 45880, 61322, 122644, 153305, 245288, 306610, 613220, 950491, 1134457, 1226440, 1900982, 2268914, 3801964, 4537828, 4752455, 5672285, 7603928, 9075656, 9504910, 11344570, 19009820, 22689140, 35168167, 38019640, 45378280, 70336334, 140672668, 175840835, 281345336, 351681670, 703363340, 1406726680]

約数ペア:

[(1, 1406726680), (2, 703363340), (4, 351681670), (5, 281345336), (8, 175840835), (10, 140672668), (20, 70336334), (31, 45378280), (37, 38019640), (40, 35168167), (62, 22689140), (74, 19009820), (124, 11344570), (148, 9504910), (155, 9075656), (185, 7603928), (248, 5672285), (296, 4752455), (310, 4537828), (370, 3801964), (620, 2268914), (740, 1900982), (1147, 1226440), (1240, 1134457), (1480, 950491), (2294, 613220), (4588, 306610), (5735, 245288), (9176, 153305), (11470, 122644), (22940, 61322), (30661, 45880)]