20202858

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1$

素因数の和:261

約数の個数: 80

約数和(自身を含む): 49945896

約数和(自身を除く): 29743038

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 53, 54, 78, 81, 106, 117, 159, 162, 181, 234, 318, 351, 362, 477, 543, 689, 702, 954, 1053, 1086, 1378, 1431, 1629, 2067, 2106, 2353, 2862, 3258, 4134, 4293, 4706, 4887, 6201, 7059, 8586, 9593, 9774, 12402, 14118, 14661, 18603, 19186, 21177, 28779, 29322, 37206, 42354, 55809, 57558, 63531, 86337, 111618, 124709, 127062, 172674, 190593, 249418, 259011, 374127, 381186, 518022, 748254, 777033, 1122381, 1554066, 2244762, 3367143, 6734286, 10101429, 20202858]

約数ペア:

[(1, 20202858), (2, 10101429), (3, 6734286), (6, 3367143), (9, 2244762), (13, 1554066), (18, 1122381), (26, 777033), (27, 748254), (39, 518022), (53, 381186), (54, 374127), (78, 259011), (81, 249418), (106, 190593), (117, 172674), (159, 127062), (162, 124709), (181, 111618), (234, 86337), (318, 63531), (351, 57558), (362, 55809), (477, 42354), (543, 37206), (689, 29322), (702, 28779), (954, 21177), (1053, 19186), (1086, 18603), (1378, 14661), (1431, 14118), (1629, 12402), (2067, 9774), (2106, 9593), (2353, 8586), (2862, 7059), (3258, 6201), (4134, 4887), (4293, 4706)]