256651920

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{50923}}^1$

素因数の和:50949

約数の個数: 120

約数和(自身を含む): 985073856

約数和(自身を除く): 728421936

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 5040, 50923, 101846, 152769, 203692, 254615, 305538, 356461, 407384, 458307, 509230, 611076, 712922, 763845, 814768, 916614, 1018460, 1069383, 1222152, 1425844, 1527690, 1782305, 1833228, 2036920, 2138766, 2291535, 2444304, 2851688, 3055380, 3208149, 3564610, 3666456, 4073840, 4277532, 4583070, 5346915, 5703376, 6110760, 6416298, 7129220, 7332912, 8555064, 9166140, 10693830, 12221520, 12832596, 14258440, 16040745, 17110128, 18332280, 21387660, 25665192, 28516880, 32081490, 36664560, 42775320, 51330384, 64162980, 85550640, 128325960, 256651920]

約数ペア:

[(1, 256651920), (2, 128325960), (3, 85550640), (4, 64162980), (5, 51330384), (6, 42775320), (7, 36664560), (8, 32081490), (9, 28516880), (10, 25665192), (12, 21387660), (14, 18332280), (15, 17110128), (16, 16040745), (18, 14258440), (20, 12832596), (21, 12221520), (24, 10693830), (28, 9166140), (30, 8555064), (35, 7332912), (36, 7129220), (40, 6416298), (42, 6110760), (45, 5703376), (48, 5346915), (56, 4583070), (60, 4277532), (63, 4073840), (70, 3666456), (72, 3564610), (80, 3208149), (84, 3055380), (90, 2851688), (105, 2444304), (112, 2291535), (120, 2138766), (126, 2036920), (140, 1833228), (144, 1782305), (168, 1527690), (180, 1425844), (210, 1222152), (240, 1069383), (252, 1018460), (280, 916614), (315, 814768), (336, 763845), (360, 712922), (420, 611076), (504, 509230), (560, 458307), (630, 407384), (720, 356461), (840, 305538), (1008, 254615), (1260, 203692), (1680, 152769), (2520, 101846), (5040, 50923)]