40783960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{1289}}^1$

素因数の和:1420

約数の個数: 64

約数和(自身を含む): 105883200

約数和(自身を除く): 65099240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 113, 140, 226, 280, 452, 565, 791, 904, 1130, 1289, 1582, 2260, 2578, 3164, 3955, 4520, 5156, 6328, 6445, 7910, 9023, 10312, 12890, 15820, 18046, 25780, 31640, 36092, 45115, 51560, 72184, 90230, 145657, 180460, 291314, 360920, 582628, 728285, 1019599, 1165256, 1456570, 2039198, 2913140, 4078396, 5097995, 5826280, 8156792, 10195990, 20391980, 40783960]

約数ペア:

[(1, 40783960), (2, 20391980), (4, 10195990), (5, 8156792), (7, 5826280), (8, 5097995), (10, 4078396), (14, 2913140), (20, 2039198), (28, 1456570), (35, 1165256), (40, 1019599), (56, 728285), (70, 582628), (113, 360920), (140, 291314), (226, 180460), (280, 145657), (452, 90230), (565, 72184), (791, 51560), (904, 45115), (1130, 36092), (1289, 31640), (1582, 25780), (2260, 18046), (2578, 15820), (3164, 12890), (3955, 10312), (4520, 9023), (5156, 7910), (6328, 6445)]