688719808

素因数分解:

$2^6\times 7^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{491}}^1$

素因数の和:642

約数の個数: 112

約数和(自身を含む): 1631582208

約数和(自身を除く): 942862400

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 101, 112, 124, 202, 217, 224, 248, 404, 434, 448, 491, 496, 707, 808, 868, 982, 992, 1414, 1616, 1736, 1964, 1984, 2828, 3131, 3232, 3437, 3472, 3928, 5656, 6262, 6464, 6874, 6944, 7856, 11312, 12524, 13748, 13888, 15221, 15712, 21917, 22624, 25048, 27496, 30442, 31424, 43834, 45248, 49591, 50096, 54992, 60884, 87668, 99182, 100192, 106547, 109984, 121768, 175336, 198364, 200384, 213094, 219968, 243536, 347137, 350672, 396728, 426188, 487072, 694274, 701344, 793456, 852376, 974144, 1388548, 1402688, 1537321, 1586912, 1704752, 2777096, 3074642, 3173824, 3409504, 5554192, 6149284, 6819008, 10761247, 11108384, 12298568, 21522494, 22216768, 24597136, 43044988, 49194272, 86089976, 98388544, 172179952, 344359904, 688719808]

約数ペア:

[(1, 688719808), (2, 344359904), (4, 172179952), (7, 98388544), (8, 86089976), (14, 49194272), (16, 43044988), (28, 24597136), (31, 22216768), (32, 21522494), (56, 12298568), (62, 11108384), (64, 10761247), (101, 6819008), (112, 6149284), (124, 5554192), (202, 3409504), (217, 3173824), (224, 3074642), (248, 2777096), (404, 1704752), (434, 1586912), (448, 1537321), (491, 1402688), (496, 1388548), (707, 974144), (808, 852376), (868, 793456), (982, 701344), (992, 694274), (1414, 487072), (1616, 426188), (1736, 396728), (1964, 350672), (1984, 347137), (2828, 243536), (3131, 219968), (3232, 213094), (3437, 200384), (3472, 198364), (3928, 175336), (5656, 121768), (6262, 109984), (6464, 106547), (6874, 100192), (6944, 99182), (7856, 87668), (11312, 60884), (12524, 54992), (13748, 50096), (13888, 49591), (15221, 45248), (15712, 43834), (21917, 31424), (22624, 30442), (25048, 27496)]