19288880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1091}}^1$

素因数の和:1134

約数の個数: 80

約数和(自身を含む): 51184224

約数和(自身を除く): 31895344

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 52, 65, 68, 80, 85, 104, 130, 136, 170, 208, 221, 260, 272, 340, 442, 520, 680, 884, 1040, 1091, 1105, 1360, 1768, 2182, 2210, 3536, 4364, 4420, 5455, 8728, 8840, 10910, 14183, 17456, 17680, 18547, 21820, 28366, 37094, 43640, 56732, 70915, 74188, 87280, 92735, 113464, 141830, 148376, 185470, 226928, 241111, 283660, 296752, 370940, 482222, 567320, 741880, 964444, 1134640, 1205555, 1483760, 1928888, 2411110, 3857776, 4822220, 9644440, 19288880]

約数ペア:

[(1, 19288880), (2, 9644440), (4, 4822220), (5, 3857776), (8, 2411110), (10, 1928888), (13, 1483760), (16, 1205555), (17, 1134640), (20, 964444), (26, 741880), (34, 567320), (40, 482222), (52, 370940), (65, 296752), (68, 283660), (80, 241111), (85, 226928), (104, 185470), (130, 148376), (136, 141830), (170, 113464), (208, 92735), (221, 87280), (260, 74188), (272, 70915), (340, 56732), (442, 43640), (520, 37094), (680, 28366), (884, 21820), (1040, 18547), (1091, 17680), (1105, 17456), (1360, 14183), (1768, 10910), (2182, 8840), (2210, 8728), (3536, 5455), (4364, 4420)]