21664560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4751}}^1$

素因数の和:4786

約数の個数: 80

約数和(自身を含む): 70709760

約数和(自身を除く): 49045200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4560, 4751, 9502, 14253, 19004, 23755, 28506, 38008, 47510, 57012, 71265, 76016, 90269, 95020, 114024, 142530, 180538, 190040, 228048, 270807, 285060, 361076, 380080, 451345, 541614, 570120, 722152, 902690, 1083228, 1140240, 1354035, 1444304, 1805380, 2166456, 2708070, 3610760, 4332912, 5416140, 7221520, 10832280, 21664560]

約数ペア:

[(1, 21664560), (2, 10832280), (3, 7221520), (4, 5416140), (5, 4332912), (6, 3610760), (8, 2708070), (10, 2166456), (12, 1805380), (15, 1444304), (16, 1354035), (19, 1140240), (20, 1083228), (24, 902690), (30, 722152), (38, 570120), (40, 541614), (48, 451345), (57, 380080), (60, 361076), (76, 285060), (80, 270807), (95, 228048), (114, 190040), (120, 180538), (152, 142530), (190, 114024), (228, 95020), (240, 90269), (285, 76016), (304, 71265), (380, 57012), (456, 47510), (570, 38008), (760, 28506), (912, 23755), (1140, 19004), (1520, 14253), (2280, 9502), (4560, 4751)]