395487920

素因数分解:

$2^4\times 5^1\times {\mathrm{1531}}^1\times {\mathrm{3229}}^1$

素因数の和:4773

約数の個数: 40

約数和(自身を含む): 920394960

約数和(自身を除く): 524907040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1531, 3062, 3229, 6124, 6458, 7655, 12248, 12916, 15310, 16145, 24496, 25832, 30620, 32290, 51664, 61240, 64580, 122480, 129160, 258320, 4943599, 9887198, 19774396, 24717995, 39548792, 49435990, 79097584, 98871980, 197743960, 395487920]

約数ペア:

[(1, 395487920), (2, 197743960), (4, 98871980), (5, 79097584), (8, 49435990), (10, 39548792), (16, 24717995), (20, 19774396), (40, 9887198), (80, 4943599), (1531, 258320), (3062, 129160), (3229, 122480), (6124, 64580), (6458, 61240), (7655, 51664), (12248, 32290), (12916, 30620), (15310, 25832), (16145, 24496)]