20131267240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{4231}}^1\times {\mathrm{16993}}^1$

素因数の和:21242

約数の個数: 64

約数和(自身を含む): 51781397760

約数和(自身を除く): 31650130520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 4231, 8462, 16924, 16993, 21155, 29617, 33848, 33986, 42310, 59234, 67972, 84620, 84965, 118468, 118951, 135944, 148085, 169240, 169930, 236936, 237902, 296170, 339860, 475804, 592340, 594755, 679720, 951608, 1184680, 1189510, 2379020, 4758040, 71897383, 143794766, 287589532, 359486915, 503281681, 575179064, 718973830, 1006563362, 1437947660, 2013126724, 2516408405, 2875895320, 4026253448, 5032816810, 10065633620, 20131267240]

約数ペア:

[(1, 20131267240), (2, 10065633620), (4, 5032816810), (5, 4026253448), (7, 2875895320), (8, 2516408405), (10, 2013126724), (14, 1437947660), (20, 1006563362), (28, 718973830), (35, 575179064), (40, 503281681), (56, 359486915), (70, 287589532), (140, 143794766), (280, 71897383), (4231, 4758040), (8462, 2379020), (16924, 1189510), (16993, 1184680), (21155, 951608), (29617, 679720), (33848, 594755), (33986, 592340), (42310, 475804), (59234, 339860), (67972, 296170), (84620, 237902), (84965, 236936), (118468, 169930), (118951, 169240), (135944, 148085)]