28990920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{34513}}^1$

素因数の和:34534

約数の個数: 64

約数和(自身を含む): 99400320

約数和(自身を除く): 70409400

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, 34513, 69026, 103539, 138052, 172565, 207078, 241591, 276104, 345130, 414156, 483182, 517695, 690260, 724773, 828312, 966364, 1035390, 1207955, 1380520, 1449546, 1932728, 2070780, 2415910, 2899092, 3623865, 4141560, 4831820, 5798184, 7247730, 9663640, 14495460, 28990920]

約数ペア:

[(1, 28990920), (2, 14495460), (3, 9663640), (4, 7247730), (5, 5798184), (6, 4831820), (7, 4141560), (8, 3623865), (10, 2899092), (12, 2415910), (14, 2070780), (15, 1932728), (20, 1449546), (21, 1380520), (24, 1207955), (28, 1035390), (30, 966364), (35, 828312), (40, 724773), (42, 690260), (56, 517695), (60, 483182), (70, 414156), (84, 345130), (105, 276104), (120, 241591), (140, 207078), (168, 172565), (210, 138052), (280, 103539), (420, 69026), (840, 34513)]