18665910

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{269}}^1$

素因数の和:542

約数の個数: 64

約数和(自身を含む): 50155200

約数和(自身を除く): 31489290

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 257, 269, 270, 514, 538, 771, 807, 1285, 1345, 1542, 1614, 2313, 2421, 2570, 2690, 3855, 4035, 4626, 4842, 6939, 7263, 7710, 8070, 11565, 12105, 13878, 14526, 23130, 24210, 34695, 36315, 69133, 69390, 72630, 138266, 207399, 345665, 414798, 622197, 691330, 1036995, 1244394, 1866591, 2073990, 3110985, 3733182, 6221970, 9332955, 18665910]

約数ペア:

[(1, 18665910), (2, 9332955), (3, 6221970), (5, 3733182), (6, 3110985), (9, 2073990), (10, 1866591), (15, 1244394), (18, 1036995), (27, 691330), (30, 622197), (45, 414798), (54, 345665), (90, 207399), (135, 138266), (257, 72630), (269, 69390), (270, 69133), (514, 36315), (538, 34695), (771, 24210), (807, 23130), (1285, 14526), (1345, 13878), (1542, 12105), (1614, 11565), (2313, 8070), (2421, 7710), (2570, 7263), (2690, 6939), (3855, 4842), (4035, 4626)]