161910

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{257}}^1$

素因数の和:277

約数の個数: 48

約数和(自身を含む): 482976

約数和(自身を除く): 321066

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 257, 315, 514, 630, 771, 1285, 1542, 1799, 2313, 2570, 3598, 3855, 4626, 5397, 7710, 8995, 10794, 11565, 16191, 17990, 23130, 26985, 32382, 53970, 80955, 161910]

約数ペア:

[(1, 161910), (2, 80955), (3, 53970), (5, 32382), (6, 26985), (7, 23130), (9, 17990), (10, 16191), (14, 11565), (15, 10794), (18, 8995), (21, 7710), (30, 5397), (35, 4626), (42, 3855), (45, 3598), (63, 2570), (70, 2313), (90, 1799), (105, 1542), (126, 1285), (210, 771), (257, 630), (315, 514)]