407902740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{971197}}^1$

素因数の和:971216

約数の個数: 48

約数和(自身を含む): 1305290112

約数和(自身を除く): 897387372

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 971197, 1942394, 2913591, 3884788, 4855985, 5827182, 6798379, 9711970, 11654364, 13596758, 14567955, 19423940, 20395137, 27193516, 29135910, 33991895, 40790274, 58271820, 67983790, 81580548, 101975685, 135967580, 203951370, 407902740]

約数ペア:

[(1, 407902740), (2, 203951370), (3, 135967580), (4, 101975685), (5, 81580548), (6, 67983790), (7, 58271820), (10, 40790274), (12, 33991895), (14, 29135910), (15, 27193516), (20, 20395137), (21, 19423940), (28, 14567955), (30, 13596758), (35, 11654364), (42, 9711970), (60, 6798379), (70, 5827182), (84, 4855985), (105, 3884788), (140, 2913591), (210, 1942394), (420, 971197)]