81959220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{2243}}^1$

素因数の和:2294

約数の個数: 144

約数和(自身を含む): 294053760

約数和(自身を除く): 212094540

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 29, 30, 35, 36, 42, 45, 58, 60, 63, 70, 84, 87, 90, 105, 116, 126, 140, 145, 174, 180, 203, 210, 252, 261, 290, 315, 348, 406, 420, 435, 522, 580, 609, 630, 812, 870, 1015, 1044, 1218, 1260, 1305, 1740, 1827, 2030, 2243, 2436, 2610, 3045, 3654, 4060, 4486, 5220, 6090, 6729, 7308, 8972, 9135, 11215, 12180, 13458, 15701, 18270, 20187, 22430, 26916, 31402, 33645, 36540, 40374, 44860, 47103, 62804, 65047, 67290, 78505, 80748, 94206, 100935, 130094, 134580, 141309, 157010, 188412, 195141, 201870, 235515, 260188, 282618, 314020, 325235, 390282, 403740, 455329, 471030, 565236, 585423, 650470, 706545, 780564, 910658, 942060, 975705, 1170846, 1300940, 1365987, 1413090, 1821316, 1951410, 2276645, 2341692, 2731974, 2826180, 2927115, 3902820, 4097961, 4553290, 5463948, 5854230, 6829935, 8195922, 9106580, 11708460, 13659870, 16391844, 20489805, 27319740, 40979610, 81959220]

約数ペア:

[(1, 81959220), (2, 40979610), (3, 27319740), (4, 20489805), (5, 16391844), (6, 13659870), (7, 11708460), (9, 9106580), (10, 8195922), (12, 6829935), (14, 5854230), (15, 5463948), (18, 4553290), (20, 4097961), (21, 3902820), (28, 2927115), (29, 2826180), (30, 2731974), (35, 2341692), (36, 2276645), (42, 1951410), (45, 1821316), (58, 1413090), (60, 1365987), (63, 1300940), (70, 1170846), (84, 975705), (87, 942060), (90, 910658), (105, 780564), (116, 706545), (126, 650470), (140, 585423), (145, 565236), (174, 471030), (180, 455329), (203, 403740), (210, 390282), (252, 325235), (261, 314020), (290, 282618), (315, 260188), (348, 235515), (406, 201870), (420, 195141), (435, 188412), (522, 157010), (580, 141309), (609, 134580), (630, 130094), (812, 100935), (870, 94206), (1015, 80748), (1044, 78505), (1218, 67290), (1260, 65047), (1305, 62804), (1740, 47103), (1827, 44860), (2030, 40374), (2243, 36540), (2436, 33645), (2610, 31402), (3045, 26916), (3654, 22430), (4060, 20187), (4486, 18270), (5220, 15701), (6090, 13458), (6729, 12180), (7308, 11215), (8972, 9135)]