19730260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{263}}^1$

素因数の和:325

約数の個数: 72

約数和(自身を含む): 47190528

約数和(自身を除く): 27460268

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 121, 124, 155, 220, 242, 263, 310, 341, 484, 526, 605, 620, 682, 1052, 1210, 1315, 1364, 1705, 2420, 2630, 2893, 3410, 3751, 5260, 5786, 6820, 7502, 8153, 11572, 14465, 15004, 16306, 18755, 28930, 31823, 32612, 37510, 40765, 57860, 63646, 75020, 81530, 89683, 127292, 159115, 163060, 179366, 318230, 358732, 448415, 636460, 896830, 986513, 1793660, 1973026, 3946052, 4932565, 9865130, 19730260]

約数ペア:

[(1, 19730260), (2, 9865130), (4, 4932565), (5, 3946052), (10, 1973026), (11, 1793660), (20, 986513), (22, 896830), (31, 636460), (44, 448415), (55, 358732), (62, 318230), (110, 179366), (121, 163060), (124, 159115), (155, 127292), (220, 89683), (242, 81530), (263, 75020), (310, 63646), (341, 57860), (484, 40765), (526, 37510), (605, 32612), (620, 31823), (682, 28930), (1052, 18755), (1210, 16306), (1315, 15004), (1364, 14465), (1705, 11572), (2420, 8153), (2630, 7502), (2893, 6820), (3410, 5786), (3751, 5260)]