25405120

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:258

約数の個数: 112

約数和(自身を含む): 67592448

約数和(自身を除く): 42187328

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 130, 155, 160, 197, 208, 248, 260, 310, 320, 394, 403, 416, 496, 520, 620, 788, 806, 832, 985, 992, 1040, 1240, 1576, 1612, 1970, 1984, 2015, 2080, 2480, 2561, 3152, 3224, 3940, 4030, 4160, 4960, 5122, 6107, 6304, 6448, 7880, 8060, 9920, 10244, 12214, 12608, 12805, 12896, 15760, 16120, 20488, 24428, 25610, 25792, 30535, 31520, 32240, 40976, 48856, 51220, 61070, 63040, 64480, 79391, 81952, 97712, 102440, 122140, 128960, 158782, 163904, 195424, 204880, 244280, 317564, 390848, 396955, 409760, 488560, 635128, 793910, 819520, 977120, 1270256, 1587820, 1954240, 2540512, 3175640, 5081024, 6351280, 12702560, 25405120]

約数ペア:

[(1, 25405120), (2, 12702560), (4, 6351280), (5, 5081024), (8, 3175640), (10, 2540512), (13, 1954240), (16, 1587820), (20, 1270256), (26, 977120), (31, 819520), (32, 793910), (40, 635128), (52, 488560), (62, 409760), (64, 396955), (65, 390848), (80, 317564), (104, 244280), (124, 204880), (130, 195424), (155, 163904), (160, 158782), (197, 128960), (208, 122140), (248, 102440), (260, 97712), (310, 81952), (320, 79391), (394, 64480), (403, 63040), (416, 61070), (496, 51220), (520, 48856), (620, 40976), (788, 32240), (806, 31520), (832, 30535), (985, 25792), (992, 25610), (1040, 24428), (1240, 20488), (1576, 16120), (1612, 15760), (1970, 12896), (1984, 12805), (2015, 12608), (2080, 12214), (2480, 10244), (2561, 9920), (3152, 8060), (3224, 7880), (3940, 6448), (4030, 6304), (4160, 6107), (4960, 5122)]