821614920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{978113}}^1$

素因数の和:978134

約数の個数: 64

約数和(自身を含む): 2816968320

約数和(自身を除く): 1995353400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 978113, 1956226, 2934339, 3912452, 4890565, 5868678, 6846791, 7824904, 9781130, 11737356, 13693582, 14671695, 19562260, 20540373, 23474712, 27387164, 29343390, 34233955, 39124520, 41080746, 54774328, 58686780, 68467910, 82161492, 102701865, 117373560, 136935820, 164322984, 205403730, 273871640, 410807460, 821614920]

約数ペア:

[(1, 821614920), (2, 410807460), (3, 273871640), (4, 205403730), (5, 164322984), (6, 136935820), (7, 117373560), (8, 102701865), (10, 82161492), (12, 68467910), (14, 58686780), (15, 54774328), (20, 41080746), (21, 39124520), (24, 34233955), (28, 29343390), (30, 27387164), (35, 23474712), (40, 20540373), (42, 19562260), (56, 14671695), (60, 13693582), (70, 11737356), (84, 9781130), (105, 7824904), (120, 6846791), (140, 5868678), (168, 4890565), (210, 3912452), (280, 2934339), (420, 1956226), (840, 978113)]