256156320

素因数分解:

$2^5\times 3^1\times 5^1\times 7^2\times {\mathrm{10891}}^1$

素因数の和:10923

約数の個数: 144

約数和(自身を含む): 938716128

約数和(自身を除く): 682559808

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 96, 98, 105, 112, 120, 140, 147, 160, 168, 196, 210, 224, 240, 245, 280, 294, 336, 392, 420, 480, 490, 560, 588, 672, 735, 784, 840, 980, 1120, 1176, 1470, 1568, 1680, 1960, 2352, 2940, 3360, 3920, 4704, 5880, 7840, 10891, 11760, 21782, 23520, 32673, 43564, 54455, 65346, 76237, 87128, 108910, 130692, 152474, 163365, 174256, 217820, 228711, 261384, 304948, 326730, 348512, 381185, 435640, 457422, 522768, 533659, 609896, 653460, 762370, 871280, 914844, 1045536, 1067318, 1143555, 1219792, 1306920, 1524740, 1600977, 1742560, 1829688, 2134636, 2287110, 2439584, 2613840, 2668295, 3049480, 3201954, 3659376, 4269272, 4574220, 5227680, 5336590, 6098960, 6403908, 7318752, 8004885, 8538544, 9148440, 10673180, 12197920, 12807816, 16009770, 17077088, 18296880, 21346360, 25615632, 32019540, 36593760, 42692720, 51231264, 64039080, 85385440, 128078160, 256156320]

約数ペア:

[(1, 256156320), (2, 128078160), (3, 85385440), (4, 64039080), (5, 51231264), (6, 42692720), (7, 36593760), (8, 32019540), (10, 25615632), (12, 21346360), (14, 18296880), (15, 17077088), (16, 16009770), (20, 12807816), (21, 12197920), (24, 10673180), (28, 9148440), (30, 8538544), (32, 8004885), (35, 7318752), (40, 6403908), (42, 6098960), (48, 5336590), (49, 5227680), (56, 4574220), (60, 4269272), (70, 3659376), (80, 3201954), (84, 3049480), (96, 2668295), (98, 2613840), (105, 2439584), (112, 2287110), (120, 2134636), (140, 1829688), (147, 1742560), (160, 1600977), (168, 1524740), (196, 1306920), (210, 1219792), (224, 1143555), (240, 1067318), (245, 1045536), (280, 914844), (294, 871280), (336, 762370), (392, 653460), (420, 609896), (480, 533659), (490, 522768), (560, 457422), (588, 435640), (672, 381185), (735, 348512), (784, 326730), (840, 304948), (980, 261384), (1120, 228711), (1176, 217820), (1470, 174256), (1568, 163365), (1680, 152474), (1960, 130692), (2352, 108910), (2940, 87128), (3360, 76237), (3920, 65346), (4704, 54455), (5880, 43564), (7840, 32673), (10891, 23520), (11760, 21782)]