25781175560

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{320821}}^1$

素因数の和:320887

約数の個数: 96

約数和(自身を含む): 69124308120

約数和(自身を除く): 43343132560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 41, 49, 56, 70, 82, 98, 140, 164, 196, 205, 245, 280, 287, 328, 392, 410, 490, 574, 820, 980, 1148, 1435, 1640, 1960, 2009, 2296, 2870, 4018, 5740, 8036, 10045, 11480, 16072, 20090, 40180, 80360, 320821, 641642, 1283284, 1604105, 2245747, 2566568, 3208210, 4491494, 6416420, 8982988, 11228735, 12832840, 13153661, 15720229, 17965976, 22457470, 26307322, 31440458, 44914940, 52614644, 62880916, 65768305, 78601145, 89829880, 92075627, 105229288, 125761832, 131536610, 157202290, 184151254, 263073220, 314404580, 368302508, 460378135, 526146440, 628809160, 644529389, 736605016, 920756270, 1289058778, 1841512540, 2578117556, 3222646945, 3683025080, 5156235112, 6445293890, 12890587780, 25781175560]

約数ペア:

[(1, 25781175560), (2, 12890587780), (4, 6445293890), (5, 5156235112), (7, 3683025080), (8, 3222646945), (10, 2578117556), (14, 1841512540), (20, 1289058778), (28, 920756270), (35, 736605016), (40, 644529389), (41, 628809160), (49, 526146440), (56, 460378135), (70, 368302508), (82, 314404580), (98, 263073220), (140, 184151254), (164, 157202290), (196, 131536610), (205, 125761832), (245, 105229288), (280, 92075627), (287, 89829880), (328, 78601145), (392, 65768305), (410, 62880916), (490, 52614644), (574, 44914940), (820, 31440458), (980, 26307322), (1148, 22457470), (1435, 17965976), (1640, 15720229), (1960, 13153661), (2009, 12832840), (2296, 11228735), (2870, 8982988), (4018, 6416420), (5740, 4491494), (8036, 3208210), (10045, 2566568), (11480, 2245747), (16072, 1604105), (20090, 1283284), (40180, 641642), (80360, 320821)]