260806720

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{431}}^1$

素因数の和:540

約数の個数: 112

約数和(自身を含む): 653101056

約数和(自身を除く): 392294336

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 61, 62, 64, 80, 122, 124, 155, 160, 244, 248, 305, 310, 320, 431, 488, 496, 610, 620, 862, 976, 992, 1220, 1240, 1724, 1891, 1952, 1984, 2155, 2440, 2480, 3448, 3782, 3904, 4310, 4880, 4960, 6896, 7564, 8620, 9455, 9760, 9920, 13361, 13792, 15128, 17240, 18910, 19520, 26291, 26722, 27584, 30256, 34480, 37820, 52582, 53444, 60512, 66805, 68960, 75640, 105164, 106888, 121024, 131455, 133610, 137920, 151280, 210328, 213776, 262910, 267220, 302560, 420656, 427552, 525820, 534440, 605120, 815021, 841312, 855104, 1051640, 1068880, 1630042, 1682624, 2103280, 2137760, 3260084, 4075105, 4206560, 4275520, 6520168, 8150210, 8413120, 13040336, 16300420, 26080672, 32600840, 52161344, 65201680, 130403360, 260806720]

約数ペア:

[(1, 260806720), (2, 130403360), (4, 65201680), (5, 52161344), (8, 32600840), (10, 26080672), (16, 16300420), (20, 13040336), (31, 8413120), (32, 8150210), (40, 6520168), (61, 4275520), (62, 4206560), (64, 4075105), (80, 3260084), (122, 2137760), (124, 2103280), (155, 1682624), (160, 1630042), (244, 1068880), (248, 1051640), (305, 855104), (310, 841312), (320, 815021), (431, 605120), (488, 534440), (496, 525820), (610, 427552), (620, 420656), (862, 302560), (976, 267220), (992, 262910), (1220, 213776), (1240, 210328), (1724, 151280), (1891, 137920), (1952, 133610), (1984, 131455), (2155, 121024), (2440, 106888), (2480, 105164), (3448, 75640), (3782, 68960), (3904, 66805), (4310, 60512), (4880, 53444), (4960, 52582), (6896, 37820), (7564, 34480), (8620, 30256), (9455, 27584), (9760, 26722), (9920, 26291), (13361, 19520), (13792, 18910), (15128, 17240)]