488452120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{193}}^1$

素因数の和:405

約数の個数: 128

約数和(自身を含む): 1235888640

約数和(自身を除く): 747436520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 157, 193, 248, 260, 310, 314, 386, 403, 520, 620, 628, 772, 785, 806, 965, 1240, 1256, 1544, 1570, 1612, 1930, 2015, 2041, 2509, 3140, 3224, 3860, 4030, 4082, 4867, 5018, 5983, 6280, 7720, 8060, 8164, 9734, 10036, 10205, 11966, 12545, 16120, 16328, 19468, 20072, 20410, 23932, 24335, 25090, 29915, 30301, 38936, 40820, 47864, 48670, 50180, 59830, 60602, 63271, 77779, 81640, 97340, 100360, 119660, 121204, 126542, 151505, 155558, 194680, 239320, 242408, 253084, 303010, 311116, 316355, 388895, 393913, 506168, 606020, 622232, 632710, 777790, 787826, 939331, 1212040, 1265420, 1555580, 1575652, 1878662, 1969565, 2530840, 3111160, 3151304, 3757324, 3939130, 4696655, 7514648, 7878260, 9393310, 12211303, 15756520, 18786620, 24422606, 37573240, 48845212, 61056515, 97690424, 122113030, 244226060, 488452120]

約数ペア:

[(1, 488452120), (2, 244226060), (4, 122113030), (5, 97690424), (8, 61056515), (10, 48845212), (13, 37573240), (20, 24422606), (26, 18786620), (31, 15756520), (40, 12211303), (52, 9393310), (62, 7878260), (65, 7514648), (104, 4696655), (124, 3939130), (130, 3757324), (155, 3151304), (157, 3111160), (193, 2530840), (248, 1969565), (260, 1878662), (310, 1575652), (314, 1555580), (386, 1265420), (403, 1212040), (520, 939331), (620, 787826), (628, 777790), (772, 632710), (785, 622232), (806, 606020), (965, 506168), (1240, 393913), (1256, 388895), (1544, 316355), (1570, 311116), (1612, 303010), (1930, 253084), (2015, 242408), (2041, 239320), (2509, 194680), (3140, 155558), (3224, 151505), (3860, 126542), (4030, 121204), (4082, 119660), (4867, 100360), (5018, 97340), (5983, 81640), (6280, 77779), (7720, 63271), (8060, 60602), (8164, 59830), (9734, 50180), (10036, 48670), (10205, 47864), (11966, 40820), (12545, 38936), (16120, 30301), (16328, 29915), (19468, 25090), (20072, 24335), (20410, 23932)]