4281940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{383}}^1$

素因数の和:448

約数の個数: 48

約数和(自身を含む): 9934848

約数和(自身を除く): 5652908

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 172, 215, 260, 383, 430, 559, 766, 860, 1118, 1532, 1915, 2236, 2795, 3830, 4979, 5590, 7660, 9958, 11180, 16469, 19916, 24895, 32938, 49790, 65876, 82345, 99580, 164690, 214097, 329380, 428194, 856388, 1070485, 2140970, 4281940]

約数ペア:

[(1, 4281940), (2, 2140970), (4, 1070485), (5, 856388), (10, 428194), (13, 329380), (20, 214097), (26, 164690), (43, 99580), (52, 82345), (65, 65876), (86, 49790), (130, 32938), (172, 24895), (215, 19916), (260, 16469), (383, 11180), (430, 9958), (559, 7660), (766, 5590), (860, 4979), (1118, 3830), (1532, 2795), (1915, 2236)]