394913960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{45497}}^1$

素因数の和:45546

約数の個数: 64

約数和(自身を含む): 1048273920

約数和(自身を除く): 653359960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 4340, 8680, 45497, 90994, 181988, 227485, 318479, 363976, 454970, 636958, 909940, 1273916, 1410407, 1592395, 1819880, 2547832, 2820814, 3184790, 5641628, 6369580, 7052035, 9872849, 11283256, 12739160, 14104070, 19745698, 28208140, 39491396, 49364245, 56416280, 78982792, 98728490, 197456980, 394913960]

約数ペア:

[(1, 394913960), (2, 197456980), (4, 98728490), (5, 78982792), (7, 56416280), (8, 49364245), (10, 39491396), (14, 28208140), (20, 19745698), (28, 14104070), (31, 12739160), (35, 11283256), (40, 9872849), (56, 7052035), (62, 6369580), (70, 5641628), (124, 3184790), (140, 2820814), (155, 2547832), (217, 1819880), (248, 1592395), (280, 1410407), (310, 1273916), (434, 909940), (620, 636958), (868, 454970), (1085, 363976), (1240, 318479), (1736, 227485), (2170, 181988), (4340, 90994), (8680, 45497)]