409134640

素因数分解:

$2^4\times 5^1\times {\mathrm{389}}^1\times {\mathrm{13147}}^1$

素因数の和:13549

約数の個数: 40

約数和(自身を含む): 953755920

約数和(自身を除く): 544621280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389, 778, 1556, 1945, 3112, 3890, 6224, 7780, 13147, 15560, 26294, 31120, 52588, 65735, 105176, 131470, 210352, 262940, 525880, 1051760, 5114183, 10228366, 20456732, 25570915, 40913464, 51141830, 81826928, 102283660, 204567320, 409134640]

約数ペア:

[(1, 409134640), (2, 204567320), (4, 102283660), (5, 81826928), (8, 51141830), (10, 40913464), (16, 25570915), (20, 20456732), (40, 10228366), (80, 5114183), (389, 1051760), (778, 525880), (1556, 262940), (1945, 210352), (3112, 131470), (3890, 105176), (6224, 65735), (7780, 52588), (13147, 31120), (15560, 26294)]