19163560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{269}}^1$

素因数の和:430

約数の個数: 64

約数和(自身を含む): 46947600

約数和(自身を除く): 27784040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 137, 260, 269, 274, 520, 538, 548, 685, 1076, 1096, 1345, 1370, 1781, 2152, 2690, 2740, 3497, 3562, 5380, 5480, 6994, 7124, 8905, 10760, 13988, 14248, 17485, 17810, 27976, 34970, 35620, 36853, 69940, 71240, 73706, 139880, 147412, 184265, 294824, 368530, 479089, 737060, 958178, 1474120, 1916356, 2395445, 3832712, 4790890, 9581780, 19163560]

約数ペア:

[(1, 19163560), (2, 9581780), (4, 4790890), (5, 3832712), (8, 2395445), (10, 1916356), (13, 1474120), (20, 958178), (26, 737060), (40, 479089), (52, 368530), (65, 294824), (104, 184265), (130, 147412), (137, 139880), (260, 73706), (269, 71240), (274, 69940), (520, 36853), (538, 35620), (548, 34970), (685, 27976), (1076, 17810), (1096, 17485), (1345, 14248), (1370, 13988), (1781, 10760), (2152, 8905), (2690, 7124), (2740, 6994), (3497, 5480), (3562, 5380)]