25905880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{647}}^1$

素因数の和:689

約数の個数: 128

約数和(自身を含む): 78382080

約数和(自身を除く): 52476200

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 65, 70, 77, 88, 91, 104, 110, 130, 140, 143, 154, 182, 220, 260, 280, 286, 308, 364, 385, 440, 455, 520, 572, 616, 647, 715, 728, 770, 910, 1001, 1144, 1294, 1430, 1540, 1820, 2002, 2588, 2860, 3080, 3235, 3640, 4004, 4529, 5005, 5176, 5720, 6470, 7117, 8008, 8411, 9058, 10010, 12940, 14234, 16822, 18116, 20020, 22645, 25880, 28468, 33644, 35585, 36232, 40040, 42055, 45290, 49819, 56936, 58877, 67288, 71170, 84110, 90580, 92521, 99638, 117754, 142340, 168220, 181160, 185042, 199276, 235508, 249095, 284680, 294385, 336440, 370084, 398552, 462605, 471016, 498190, 588770, 647647, 740168, 925210, 996380, 1177540, 1295294, 1850420, 1992760, 2355080, 2590588, 3238235, 3700840, 5181176, 6476470, 12952940, 25905880]

約数ペア:

[(1, 25905880), (2, 12952940), (4, 6476470), (5, 5181176), (7, 3700840), (8, 3238235), (10, 2590588), (11, 2355080), (13, 1992760), (14, 1850420), (20, 1295294), (22, 1177540), (26, 996380), (28, 925210), (35, 740168), (40, 647647), (44, 588770), (52, 498190), (55, 471016), (56, 462605), (65, 398552), (70, 370084), (77, 336440), (88, 294385), (91, 284680), (104, 249095), (110, 235508), (130, 199276), (140, 185042), (143, 181160), (154, 168220), (182, 142340), (220, 117754), (260, 99638), (280, 92521), (286, 90580), (308, 84110), (364, 71170), (385, 67288), (440, 58877), (455, 56936), (520, 49819), (572, 45290), (616, 42055), (647, 40040), (715, 36232), (728, 35585), (770, 33644), (910, 28468), (1001, 25880), (1144, 22645), (1294, 20020), (1430, 18116), (1540, 16822), (1820, 14234), (2002, 12940), (2588, 10010), (2860, 9058), (3080, 8411), (3235, 8008), (3640, 7117), (4004, 6470), (4529, 5720), (5005, 5176)]