20717191530

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{154387}}^1$

素因数の和:154481

約数の個数: 128

約数和(自身を含む): 64027791360

約数和(自身を除く): 43310599830

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 71, 90, 105, 126, 135, 142, 189, 210, 213, 270, 315, 355, 378, 426, 497, 630, 639, 710, 945, 994, 1065, 1278, 1491, 1890, 1917, 2130, 2485, 2982, 3195, 3834, 4473, 4970, 6390, 7455, 8946, 9585, 13419, 14910, 19170, 22365, 26838, 44730, 67095, 134190, 154387, 308774, 463161, 771935, 926322, 1080709, 1389483, 1543870, 2161418, 2315805, 2778966, 3242127, 4168449, 4631610, 5403545, 6484254, 6947415, 8336898, 9726381, 10807090, 10961477, 13894830, 16210635, 19452762, 20842245, 21922954, 29179143, 32421270, 32884431, 41684490, 48631905, 54807385, 58358286, 65768862, 76730339, 97263810, 98653293, 109614770, 145895715, 153460678, 164422155, 197306586, 230191017, 291791430, 295959879, 328844310, 383651695, 460382034, 493266465, 591919758, 690573051, 767303390, 986532930, 1150955085, 1381146102, 1479799395, 2071719153, 2301910170, 2959598790, 3452865255, 4143438306, 6905730510, 10358595765, 20717191530]

約数ペア:

[(1, 20717191530), (2, 10358595765), (3, 6905730510), (5, 4143438306), (6, 3452865255), (7, 2959598790), (9, 2301910170), (10, 2071719153), (14, 1479799395), (15, 1381146102), (18, 1150955085), (21, 986532930), (27, 767303390), (30, 690573051), (35, 591919758), (42, 493266465), (45, 460382034), (54, 383651695), (63, 328844310), (70, 295959879), (71, 291791430), (90, 230191017), (105, 197306586), (126, 164422155), (135, 153460678), (142, 145895715), (189, 109614770), (210, 98653293), (213, 97263810), (270, 76730339), (315, 65768862), (355, 58358286), (378, 54807385), (426, 48631905), (497, 41684490), (630, 32884431), (639, 32421270), (710, 29179143), (945, 21922954), (994, 20842245), (1065, 19452762), (1278, 16210635), (1491, 13894830), (1890, 10961477), (1917, 10807090), (2130, 9726381), (2485, 8336898), (2982, 6947415), (3195, 6484254), (3834, 5403545), (4473, 4631610), (4970, 4168449), (6390, 3242127), (7455, 2778966), (8946, 2315805), (9585, 2161418), (13419, 1543870), (14910, 1389483), (19170, 1080709), (22365, 926322), (26838, 771935), (44730, 463161), (67095, 308774), (134190, 154387)]