257207028

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{811}}^1$

素因数の和:957

約数の個数: 96

約数和(自身を含む): 687536640

約数和(自身を除く): 430329612

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 38, 39, 52, 57, 76, 78, 107, 114, 156, 214, 228, 247, 321, 428, 494, 642, 741, 811, 988, 1284, 1391, 1482, 1622, 2033, 2433, 2782, 2964, 3244, 4066, 4173, 4866, 5564, 6099, 8132, 8346, 9732, 10543, 12198, 15409, 16692, 21086, 24396, 26429, 30818, 31629, 42172, 46227, 52858, 61636, 63258, 79287, 86777, 92454, 105716, 126516, 158574, 173554, 184908, 200317, 260331, 317148, 347108, 400634, 520662, 600951, 801268, 1041324, 1128101, 1201902, 1648763, 2256202, 2403804, 3297526, 3384303, 4512404, 4946289, 6595052, 6768606, 9892578, 13537212, 19785156, 21433919, 42867838, 64301757, 85735676, 128603514, 257207028]

約数ペア:

[(1, 257207028), (2, 128603514), (3, 85735676), (4, 64301757), (6, 42867838), (12, 21433919), (13, 19785156), (19, 13537212), (26, 9892578), (38, 6768606), (39, 6595052), (52, 4946289), (57, 4512404), (76, 3384303), (78, 3297526), (107, 2403804), (114, 2256202), (156, 1648763), (214, 1201902), (228, 1128101), (247, 1041324), (321, 801268), (428, 600951), (494, 520662), (642, 400634), (741, 347108), (811, 317148), (988, 260331), (1284, 200317), (1391, 184908), (1482, 173554), (1622, 158574), (2033, 126516), (2433, 105716), (2782, 92454), (2964, 86777), (3244, 79287), (4066, 63258), (4173, 61636), (4866, 52858), (5564, 46227), (6099, 42172), (8132, 31629), (8346, 30818), (9732, 26429), (10543, 24396), (12198, 21086), (15409, 16692)]