20505576

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{229}}^1$

素因数の和:299

約数の個数: 128

約数和(自身を含む): 64915200

約数和(自身を除く): 44409624

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 39, 41, 42, 52, 56, 78, 82, 84, 91, 104, 123, 156, 164, 168, 182, 229, 246, 273, 287, 312, 328, 364, 458, 492, 533, 546, 574, 687, 728, 861, 916, 984, 1066, 1092, 1148, 1374, 1599, 1603, 1722, 1832, 2132, 2184, 2296, 2748, 2977, 3198, 3206, 3444, 3731, 4264, 4809, 5496, 5954, 6396, 6412, 6888, 7462, 8931, 9389, 9618, 11193, 11908, 12792, 12824, 14924, 17862, 18778, 19236, 20839, 22386, 23816, 28167, 29848, 35724, 37556, 38472, 41678, 44772, 56334, 62517, 65723, 71448, 75112, 83356, 89544, 112668, 122057, 125034, 131446, 166712, 197169, 225336, 244114, 250068, 262892, 366171, 394338, 488228, 500136, 525784, 732342, 788676, 854399, 976456, 1464684, 1577352, 1708798, 2563197, 2929368, 3417596, 5126394, 6835192, 10252788, 20505576]

約数ペア:

[(1, 20505576), (2, 10252788), (3, 6835192), (4, 5126394), (6, 3417596), (7, 2929368), (8, 2563197), (12, 1708798), (13, 1577352), (14, 1464684), (21, 976456), (24, 854399), (26, 788676), (28, 732342), (39, 525784), (41, 500136), (42, 488228), (52, 394338), (56, 366171), (78, 262892), (82, 250068), (84, 244114), (91, 225336), (104, 197169), (123, 166712), (156, 131446), (164, 125034), (168, 122057), (182, 112668), (229, 89544), (246, 83356), (273, 75112), (287, 71448), (312, 65723), (328, 62517), (364, 56334), (458, 44772), (492, 41678), (533, 38472), (546, 37556), (574, 35724), (687, 29848), (728, 28167), (861, 23816), (916, 22386), (984, 20839), (1066, 19236), (1092, 18778), (1148, 17862), (1374, 14924), (1599, 12824), (1603, 12792), (1722, 11908), (1832, 11193), (2132, 9618), (2184, 9389), (2296, 8931), (2748, 7462), (2977, 6888), (3198, 6412), (3206, 6396), (3444, 5954), (3731, 5496), (4264, 4809)]