256733308

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{157}}^1$

素因数の和:287

約数の個数: 72

約数和(自身を含む): 510042960

約数和(自身を除く): 253309652

約数列:

[1, 2, 4, 13, 26, 41, 52, 59, 82, 118, 157, 164, 169, 236, 314, 338, 533, 628, 676, 767, 1066, 1534, 2041, 2132, 2419, 3068, 4082, 4838, 6437, 6929, 8164, 9263, 9676, 9971, 12874, 13858, 18526, 19942, 25748, 26533, 27716, 31447, 37052, 39884, 53066, 62894, 83681, 106132, 120419, 125788, 167362, 240838, 334724, 379783, 408811, 481676, 759566, 817622, 1087853, 1519132, 1565447, 1635244, 2175706, 3130894, 4351412, 4937179, 6261788, 9874358, 19748716, 64183327, 128366654, 256733308]

約数ペア:

[(1, 256733308), (2, 128366654), (4, 64183327), (13, 19748716), (26, 9874358), (41, 6261788), (52, 4937179), (59, 4351412), (82, 3130894), (118, 2175706), (157, 1635244), (164, 1565447), (169, 1519132), (236, 1087853), (314, 817622), (338, 759566), (533, 481676), (628, 408811), (676, 379783), (767, 334724), (1066, 240838), (1534, 167362), (2041, 125788), (2132, 120419), (2419, 106132), (3068, 83681), (4082, 62894), (4838, 53066), (6437, 39884), (6929, 37052), (8164, 31447), (9263, 27716), (9676, 26533), (9971, 25748), (12874, 19942), (13858, 18526)]