21226600

素因数分解:

$2^3\times 5^2\times {\mathrm{211}}^1\times {\mathrm{503}}^1$

素因数の和:730

約数の個数: 48

約数和(自身を含む): 49684320

約数和(自身を除く): 28457720

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 211, 422, 503, 844, 1006, 1055, 1688, 2012, 2110, 2515, 4024, 4220, 5030, 5275, 8440, 10060, 10550, 12575, 20120, 21100, 25150, 42200, 50300, 100600, 106133, 212266, 424532, 530665, 849064, 1061330, 2122660, 2653325, 4245320, 5306650, 10613300, 21226600]

約数ペア:

[(1, 21226600), (2, 10613300), (4, 5306650), (5, 4245320), (8, 2653325), (10, 2122660), (20, 1061330), (25, 849064), (40, 530665), (50, 424532), (100, 212266), (200, 106133), (211, 100600), (422, 50300), (503, 42200), (844, 25150), (1006, 21100), (1055, 20120), (1688, 12575), (2012, 10550), (2110, 10060), (2515, 8440), (4024, 5275), (4220, 5030)]