20802872960

素因数分解:

$2^7\times 5^1\times {\mathrm{229}}^1\times {\mathrm{141941}}^1$

素因数の和:142189

約数の個数: 64

約数和(自身を含む): 49949389800

約数和(自身を除く): 29146516840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 229, 320, 458, 640, 916, 1145, 1832, 2290, 3664, 4580, 7328, 9160, 14656, 18320, 29312, 36640, 73280, 141941, 146560, 283882, 567764, 709705, 1135528, 1419410, 2271056, 2838820, 4542112, 5677640, 9084224, 11355280, 18168448, 22710560, 32504489, 45421120, 65008978, 90842240, 130017956, 162522445, 260035912, 325044890, 520071824, 650089780, 1040143648, 1300179560, 2080287296, 2600359120, 4160574592, 5200718240, 10401436480, 20802872960]

約数ペア:

[(1, 20802872960), (2, 10401436480), (4, 5200718240), (5, 4160574592), (8, 2600359120), (10, 2080287296), (16, 1300179560), (20, 1040143648), (32, 650089780), (40, 520071824), (64, 325044890), (80, 260035912), (128, 162522445), (160, 130017956), (229, 90842240), (320, 65008978), (458, 45421120), (640, 32504489), (916, 22710560), (1145, 18168448), (1832, 11355280), (2290, 9084224), (3664, 5677640), (4580, 4542112), (7328, 2838820), (9160, 2271056), (14656, 1419410), (18320, 1135528), (29312, 709705), (36640, 567764), (73280, 283882), (141941, 146560)]