20906028

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:196

約数の個数: 144

約数和(自身を含む): 64576512

約数和(自身を除く): 43670484

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 13, 18, 22, 26, 31, 33, 36, 39, 44, 52, 62, 66, 78, 93, 99, 117, 124, 131, 132, 143, 156, 186, 198, 234, 262, 279, 286, 341, 372, 393, 396, 403, 429, 468, 524, 558, 572, 682, 786, 806, 858, 1023, 1116, 1179, 1209, 1287, 1364, 1441, 1572, 1612, 1703, 1716, 2046, 2358, 2418, 2574, 2882, 3069, 3406, 3627, 4061, 4092, 4323, 4433, 4716, 4836, 5109, 5148, 5764, 6138, 6812, 7254, 8122, 8646, 8866, 10218, 12183, 12276, 12969, 13299, 14508, 15327, 16244, 17292, 17732, 18733, 20436, 24366, 25938, 26598, 30654, 36549, 37466, 39897, 44671, 48732, 51876, 52793, 53196, 56199, 61308, 73098, 74932, 79794, 89342, 105586, 112398, 134013, 146196, 158379, 159588, 168597, 178684, 211172, 224796, 268026, 316758, 337194, 402039, 475137, 536052, 580723, 633516, 674388, 804078, 950274, 1161446, 1608156, 1742169, 1900548, 2322892, 3484338, 5226507, 6968676, 10453014, 20906028]

約数ペア:

[(1, 20906028), (2, 10453014), (3, 6968676), (4, 5226507), (6, 3484338), (9, 2322892), (11, 1900548), (12, 1742169), (13, 1608156), (18, 1161446), (22, 950274), (26, 804078), (31, 674388), (33, 633516), (36, 580723), (39, 536052), (44, 475137), (52, 402039), (62, 337194), (66, 316758), (78, 268026), (93, 224796), (99, 211172), (117, 178684), (124, 168597), (131, 159588), (132, 158379), (143, 146196), (156, 134013), (186, 112398), (198, 105586), (234, 89342), (262, 79794), (279, 74932), (286, 73098), (341, 61308), (372, 56199), (393, 53196), (396, 52793), (403, 51876), (429, 48732), (468, 44671), (524, 39897), (558, 37466), (572, 36549), (682, 30654), (786, 26598), (806, 25938), (858, 24366), (1023, 20436), (1116, 18733), (1179, 17732), (1209, 17292), (1287, 16244), (1364, 15327), (1441, 14508), (1572, 13299), (1612, 12969), (1703, 12276), (1716, 12183), (2046, 10218), (2358, 8866), (2418, 8646), (2574, 8122), (2882, 7254), (3069, 6812), (3406, 6138), (3627, 5764), (4061, 5148), (4092, 5109), (4323, 4836), (4433, 4716)]