219156980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{50497}}^1$

素因数の和:50544

約数の個数: 48

約数和(自身を含む): 542954496

約数和(自身を除く): 323797516

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 50497, 100994, 201988, 252485, 353479, 504970, 706958, 1009940, 1413916, 1565407, 1767395, 3130814, 3534790, 6261628, 7069580, 7827035, 10957849, 15654070, 21915698, 31308140, 43831396, 54789245, 109578490, 219156980]

約数ペア:

[(1, 219156980), (2, 109578490), (4, 54789245), (5, 43831396), (7, 31308140), (10, 21915698), (14, 15654070), (20, 10957849), (28, 7827035), (31, 7069580), (35, 6261628), (62, 3534790), (70, 3130814), (124, 1767395), (140, 1565407), (155, 1413916), (217, 1009940), (310, 706958), (434, 504970), (620, 353479), (868, 252485), (1085, 201988), (2170, 100994), (4340, 50497)]