201920290

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{337}}^1\times {\mathrm{419}}^1$

素因数の和:787

約数の個数: 64

約数和(自身を含む): 429287040

約数和(自身を除く): 227366750

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 337, 419, 674, 715, 838, 1430, 1685, 2095, 3370, 3707, 4190, 4381, 4609, 5447, 7414, 8762, 9218, 10894, 18535, 21905, 23045, 27235, 37070, 43810, 46090, 48191, 54470, 59917, 96382, 119834, 141203, 240955, 282406, 299585, 481910, 599170, 706015, 1412030, 1553233, 1835639, 3106466, 3671278, 7766165, 9178195, 15532330, 18356390, 20192029, 40384058, 100960145, 201920290]

約数ペア:

[(1, 201920290), (2, 100960145), (5, 40384058), (10, 20192029), (11, 18356390), (13, 15532330), (22, 9178195), (26, 7766165), (55, 3671278), (65, 3106466), (110, 1835639), (130, 1553233), (143, 1412030), (286, 706015), (337, 599170), (419, 481910), (674, 299585), (715, 282406), (838, 240955), (1430, 141203), (1685, 119834), (2095, 96382), (3370, 59917), (3707, 54470), (4190, 48191), (4381, 46090), (4609, 43810), (5447, 37070), (7414, 27235), (8762, 23045), (9218, 21905), (10894, 18535)]