421554620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{7673}}^1$

素因数の和:7790

約数の個数: 48

約数和(自身を含む): 920511648

約数和(自身を除く): 498957028

約数列:

[1, 2, 4, 5, 10, 20, 41, 67, 82, 134, 164, 205, 268, 335, 410, 670, 820, 1340, 2747, 5494, 7673, 10988, 13735, 15346, 27470, 30692, 38365, 54940, 76730, 153460, 314593, 514091, 629186, 1028182, 1258372, 1572965, 2056364, 2570455, 3145930, 5140910, 6291860, 10281820, 21077731, 42155462, 84310924, 105388655, 210777310, 421554620]

約数ペア:

[(1, 421554620), (2, 210777310), (4, 105388655), (5, 84310924), (10, 42155462), (20, 21077731), (41, 10281820), (67, 6291860), (82, 5140910), (134, 3145930), (164, 2570455), (205, 2056364), (268, 1572965), (335, 1258372), (410, 1028182), (670, 629186), (820, 514091), (1340, 314593), (2747, 153460), (5494, 76730), (7673, 54940), (10988, 38365), (13735, 30692), (15346, 27470)]