25693480

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1$

素因数の和:274

約数の個数: 64

約数和(自身を含む): 59875200

約数和(自身を除く): 34181720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 83, 109, 142, 166, 218, 284, 332, 355, 415, 436, 545, 568, 664, 710, 830, 872, 1090, 1420, 1660, 2180, 2840, 3320, 4360, 5893, 7739, 9047, 11786, 15478, 18094, 23572, 29465, 30956, 36188, 38695, 45235, 47144, 58930, 61912, 72376, 77390, 90470, 117860, 154780, 180940, 235720, 309560, 361880, 642337, 1284674, 2569348, 3211685, 5138696, 6423370, 12846740, 25693480]

約数ペア:

[(1, 25693480), (2, 12846740), (4, 6423370), (5, 5138696), (8, 3211685), (10, 2569348), (20, 1284674), (40, 642337), (71, 361880), (83, 309560), (109, 235720), (142, 180940), (166, 154780), (218, 117860), (284, 90470), (332, 77390), (355, 72376), (415, 61912), (436, 58930), (545, 47144), (568, 45235), (664, 38695), (710, 36188), (830, 30956), (872, 29465), (1090, 23572), (1420, 18094), (1660, 15478), (2180, 11786), (2840, 9047), (3320, 7739), (4360, 5893)]