28356720

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{16879}}^1$

素因数の和:16902

約数の個数: 80

約数和(自身を含む): 100469760

約数和(自身を除く): 72113040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 16879, 33758, 50637, 67516, 84395, 101274, 118153, 135032, 168790, 202548, 236306, 253185, 270064, 337580, 354459, 405096, 472612, 506370, 590765, 675160, 708918, 810192, 945224, 1012740, 1181530, 1350320, 1417836, 1772295, 1890448, 2025480, 2363060, 2835672, 3544590, 4050960, 4726120, 5671344, 7089180, 9452240, 14178360, 28356720]

約数ペア:

[(1, 28356720), (2, 14178360), (3, 9452240), (4, 7089180), (5, 5671344), (6, 4726120), (7, 4050960), (8, 3544590), (10, 2835672), (12, 2363060), (14, 2025480), (15, 1890448), (16, 1772295), (20, 1417836), (21, 1350320), (24, 1181530), (28, 1012740), (30, 945224), (35, 810192), (40, 708918), (42, 675160), (48, 590765), (56, 506370), (60, 472612), (70, 405096), (80, 354459), (84, 337580), (105, 270064), (112, 253185), (120, 236306), (140, 202548), (168, 168790), (210, 135032), (240, 118153), (280, 101274), (336, 84395), (420, 67516), (560, 50637), (840, 33758), (1680, 16879)]