172315520

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:320

約数の個数: 128

約数和(自身を含む): 449820000

約数和(自身を除く): 277504480

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 139, 149, 160, 208, 260, 278, 298, 320, 416, 520, 556, 596, 640, 695, 745, 832, 1040, 1112, 1192, 1390, 1490, 1664, 1807, 1937, 2080, 2224, 2384, 2780, 2980, 3614, 3874, 4160, 4448, 4768, 5560, 5960, 7228, 7748, 8320, 8896, 9035, 9536, 9685, 11120, 11920, 14456, 15496, 17792, 18070, 19072, 19370, 20711, 22240, 23840, 28912, 30992, 36140, 38740, 41422, 44480, 47680, 57824, 61984, 72280, 77480, 82844, 88960, 95360, 103555, 115648, 123968, 144560, 154960, 165688, 207110, 231296, 247936, 269243, 289120, 309920, 331376, 414220, 538486, 578240, 619840, 662752, 828440, 1076972, 1156480, 1239680, 1325504, 1346215, 1656880, 2153944, 2651008, 2692430, 3313760, 4307888, 5384860, 6627520, 8615776, 10769720, 13255040, 17231552, 21539440, 34463104, 43078880, 86157760, 172315520]

約数ペア:

[(1, 172315520), (2, 86157760), (4, 43078880), (5, 34463104), (8, 21539440), (10, 17231552), (13, 13255040), (16, 10769720), (20, 8615776), (26, 6627520), (32, 5384860), (40, 4307888), (52, 3313760), (64, 2692430), (65, 2651008), (80, 2153944), (104, 1656880), (128, 1346215), (130, 1325504), (139, 1239680), (149, 1156480), (160, 1076972), (208, 828440), (260, 662752), (278, 619840), (298, 578240), (320, 538486), (416, 414220), (520, 331376), (556, 309920), (596, 289120), (640, 269243), (695, 247936), (745, 231296), (832, 207110), (1040, 165688), (1112, 154960), (1192, 144560), (1390, 123968), (1490, 115648), (1664, 103555), (1807, 95360), (1937, 88960), (2080, 82844), (2224, 77480), (2384, 72280), (2780, 61984), (2980, 57824), (3614, 47680), (3874, 44480), (4160, 41422), (4448, 38740), (4768, 36140), (5560, 30992), (5960, 28912), (7228, 23840), (7748, 22240), (8320, 20711), (8896, 19370), (9035, 19072), (9536, 18070), (9685, 17792), (11120, 15496), (11920, 14456)]