128227680

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{12721}}^1$

素因数の和:12749

約数の個数: 144

約数和(自身を含む): 500127264

約数和(自身を除く): 371899584

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 360, 420, 480, 504, 560, 630, 672, 720, 840, 1008, 1120, 1260, 1440, 1680, 2016, 2520, 3360, 5040, 10080, 12721, 25442, 38163, 50884, 63605, 76326, 89047, 101768, 114489, 127210, 152652, 178094, 190815, 203536, 228978, 254420, 267141, 305304, 356188, 381630, 407072, 445235, 457956, 508840, 534282, 572445, 610608, 712376, 763260, 801423, 890470, 915912, 1017680, 1068564, 1144890, 1221216, 1335705, 1424752, 1526520, 1602846, 1780940, 1831824, 2035360, 2137128, 2289780, 2671410, 2849504, 3053040, 3205692, 3561880, 3663648, 4007115, 4274256, 4579560, 5342820, 6106080, 6411384, 7123760, 8014230, 8548512, 9159120, 10685640, 12822768, 14247520, 16028460, 18318240, 21371280, 25645536, 32056920, 42742560, 64113840, 128227680]

約数ペア:

[(1, 128227680), (2, 64113840), (3, 42742560), (4, 32056920), (5, 25645536), (6, 21371280), (7, 18318240), (8, 16028460), (9, 14247520), (10, 12822768), (12, 10685640), (14, 9159120), (15, 8548512), (16, 8014230), (18, 7123760), (20, 6411384), (21, 6106080), (24, 5342820), (28, 4579560), (30, 4274256), (32, 4007115), (35, 3663648), (36, 3561880), (40, 3205692), (42, 3053040), (45, 2849504), (48, 2671410), (56, 2289780), (60, 2137128), (63, 2035360), (70, 1831824), (72, 1780940), (80, 1602846), (84, 1526520), (90, 1424752), (96, 1335705), (105, 1221216), (112, 1144890), (120, 1068564), (126, 1017680), (140, 915912), (144, 890470), (160, 801423), (168, 763260), (180, 712376), (210, 610608), (224, 572445), (240, 534282), (252, 508840), (280, 457956), (288, 445235), (315, 407072), (336, 381630), (360, 356188), (420, 305304), (480, 267141), (504, 254420), (560, 228978), (630, 203536), (672, 190815), (720, 178094), (840, 152652), (1008, 127210), (1120, 114489), (1260, 101768), (1440, 89047), (1680, 76326), (2016, 63605), (2520, 50884), (3360, 38163), (5040, 25442), (10080, 12721)]