25565880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{157}}^1$

素因数の和:253

約数の個数: 128

約数和(自身を含む): 81907200

約数和(自身を除く): 56341320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 59, 60, 69, 92, 115, 118, 120, 138, 157, 177, 184, 230, 236, 276, 295, 314, 345, 354, 460, 471, 472, 552, 590, 628, 690, 708, 785, 885, 920, 942, 1180, 1256, 1357, 1380, 1416, 1570, 1770, 1884, 2355, 2360, 2714, 2760, 3140, 3540, 3611, 3768, 4071, 4710, 5428, 6280, 6785, 7080, 7222, 8142, 9263, 9420, 10833, 10856, 13570, 14444, 16284, 18055, 18526, 18840, 20355, 21666, 27140, 27789, 28888, 32568, 36110, 37052, 40710, 43332, 46315, 54165, 54280, 55578, 72220, 74104, 81420, 86664, 92630, 108330, 111156, 138945, 144440, 162840, 185260, 213049, 216660, 222312, 277890, 370520, 426098, 433320, 555780, 639147, 852196, 1065245, 1111560, 1278294, 1704392, 2130490, 2556588, 3195735, 4260980, 5113176, 6391470, 8521960, 12782940, 25565880]

約数ペア:

[(1, 25565880), (2, 12782940), (3, 8521960), (4, 6391470), (5, 5113176), (6, 4260980), (8, 3195735), (10, 2556588), (12, 2130490), (15, 1704392), (20, 1278294), (23, 1111560), (24, 1065245), (30, 852196), (40, 639147), (46, 555780), (59, 433320), (60, 426098), (69, 370520), (92, 277890), (115, 222312), (118, 216660), (120, 213049), (138, 185260), (157, 162840), (177, 144440), (184, 138945), (230, 111156), (236, 108330), (276, 92630), (295, 86664), (314, 81420), (345, 74104), (354, 72220), (460, 55578), (471, 54280), (472, 54165), (552, 46315), (590, 43332), (628, 40710), (690, 37052), (708, 36110), (785, 32568), (885, 28888), (920, 27789), (942, 27140), (1180, 21666), (1256, 20355), (1357, 18840), (1380, 18526), (1416, 18055), (1570, 16284), (1770, 14444), (1884, 13570), (2355, 10856), (2360, 10833), (2714, 9420), (2760, 9263), (3140, 8142), (3540, 7222), (3611, 7080), (3768, 6785), (4071, 6280), (4710, 5428)]