491342679

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1$

素因数の和:270

約数の個数: 80

約数和(自身を含む): 814572000

約数和(自身を除く): 323229321

約数列:

[1, 3, 9, 19, 27, 29, 57, 81, 87, 101, 109, 171, 261, 303, 327, 513, 551, 783, 909, 981, 1539, 1653, 1919, 2071, 2349, 2727, 2929, 2943, 3161, 4959, 5757, 6213, 8181, 8787, 8829, 9483, 11009, 14877, 17271, 18639, 26361, 28449, 33027, 44631, 51813, 55651, 55917, 60059, 79083, 85347, 99081, 155439, 166953, 167751, 180177, 209171, 237249, 256041, 297243, 319261, 500859, 540531, 627513, 891729, 957783, 1502577, 1621593, 1882539, 2873349, 4507731, 4864779, 5647617, 6065959, 8620047, 16942851, 18197877, 25860141, 54593631, 163780893, 491342679]

約数ペア:

[(1, 491342679), (3, 163780893), (9, 54593631), (19, 25860141), (27, 18197877), (29, 16942851), (57, 8620047), (81, 6065959), (87, 5647617), (101, 4864779), (109, 4507731), (171, 2873349), (261, 1882539), (303, 1621593), (327, 1502577), (513, 957783), (551, 891729), (783, 627513), (909, 540531), (981, 500859), (1539, 319261), (1653, 297243), (1919, 256041), (2071, 237249), (2349, 209171), (2727, 180177), (2929, 167751), (2943, 166953), (3161, 155439), (4959, 99081), (5757, 85347), (6213, 79083), (8181, 60059), (8787, 55917), (8829, 55651), (9483, 51813), (11009, 44631), (14877, 33027), (17271, 28449), (18639, 26361)]