254301680

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^2\times {\mathrm{61}}^1$

素因数の和:187

約数の個数: 120

約数和(自身を含む): 635828352

約数和(自身を除く): 381526672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 41, 61, 62, 80, 82, 122, 124, 155, 164, 205, 244, 248, 305, 310, 328, 410, 488, 496, 610, 620, 656, 820, 976, 1220, 1240, 1271, 1640, 1681, 1891, 2440, 2480, 2501, 2542, 3280, 3362, 3782, 4880, 5002, 5084, 6355, 6724, 7564, 8405, 9455, 10004, 10168, 12505, 12710, 13448, 15128, 16810, 18910, 20008, 20336, 25010, 25420, 26896, 30256, 33620, 37820, 40016, 50020, 50840, 52111, 67240, 75640, 77531, 100040, 101680, 102541, 104222, 134480, 151280, 155062, 200080, 205082, 208444, 260555, 310124, 387655, 410164, 416888, 512705, 521110, 620248, 775310, 820328, 833776, 1025410, 1042220, 1240496, 1550620, 1640656, 2050820, 2084440, 3101240, 3178771, 4101640, 4168880, 6202480, 6357542, 8203280, 12715084, 15893855, 25430168, 31787710, 50860336, 63575420, 127150840, 254301680]

約数ペア:

[(1, 254301680), (2, 127150840), (4, 63575420), (5, 50860336), (8, 31787710), (10, 25430168), (16, 15893855), (20, 12715084), (31, 8203280), (40, 6357542), (41, 6202480), (61, 4168880), (62, 4101640), (80, 3178771), (82, 3101240), (122, 2084440), (124, 2050820), (155, 1640656), (164, 1550620), (205, 1240496), (244, 1042220), (248, 1025410), (305, 833776), (310, 820328), (328, 775310), (410, 620248), (488, 521110), (496, 512705), (610, 416888), (620, 410164), (656, 387655), (820, 310124), (976, 260555), (1220, 208444), (1240, 205082), (1271, 200080), (1640, 155062), (1681, 151280), (1891, 134480), (2440, 104222), (2480, 102541), (2501, 101680), (2542, 100040), (3280, 77531), (3362, 75640), (3782, 67240), (4880, 52111), (5002, 50840), (5084, 50020), (6355, 40016), (6724, 37820), (7564, 33620), (8405, 30256), (9455, 26896), (10004, 25420), (10168, 25010), (12505, 20336), (12710, 20008), (13448, 18910), (15128, 16810)]