21921360

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{241}}^1\times {\mathrm{379}}^1$

素因数の和:636

約数の個数: 80

約数和(自身を含む): 68418240

約数和(自身を除く): 46496880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 241, 379, 482, 723, 758, 964, 1137, 1205, 1446, 1516, 1895, 1928, 2274, 2410, 2892, 3032, 3615, 3790, 3856, 4548, 4820, 5685, 5784, 6064, 7230, 7580, 9096, 9640, 11370, 11568, 14460, 15160, 18192, 19280, 22740, 28920, 30320, 45480, 57840, 90960, 91339, 182678, 274017, 365356, 456695, 548034, 730712, 913390, 1096068, 1370085, 1461424, 1826780, 2192136, 2740170, 3653560, 4384272, 5480340, 7307120, 10960680, 21921360]

約数ペア:

[(1, 21921360), (2, 10960680), (3, 7307120), (4, 5480340), (5, 4384272), (6, 3653560), (8, 2740170), (10, 2192136), (12, 1826780), (15, 1461424), (16, 1370085), (20, 1096068), (24, 913390), (30, 730712), (40, 548034), (48, 456695), (60, 365356), (80, 274017), (120, 182678), (240, 91339), (241, 90960), (379, 57840), (482, 45480), (723, 30320), (758, 28920), (964, 22740), (1137, 19280), (1205, 18192), (1446, 15160), (1516, 14460), (1895, 11568), (1928, 11370), (2274, 9640), (2410, 9096), (2892, 7580), (3032, 7230), (3615, 6064), (3790, 5784), (3856, 5685), (4548, 4820)]