38638640

素因数分解:

$2^4\times 5^1\times {\mathrm{311}}^1\times {\mathrm{1553}}^1$

素因数の和:1877

約数の個数: 40

約数和(自身を含む): 90181728

約数和(自身を除く): 51543088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 311, 622, 1244, 1553, 1555, 2488, 3106, 3110, 4976, 6212, 6220, 7765, 12424, 12440, 15530, 24848, 24880, 31060, 62120, 124240, 482983, 965966, 1931932, 2414915, 3863864, 4829830, 7727728, 9659660, 19319320, 38638640]

約数ペア:

[(1, 38638640), (2, 19319320), (4, 9659660), (5, 7727728), (8, 4829830), (10, 3863864), (16, 2414915), (20, 1931932), (40, 965966), (80, 482983), (311, 124240), (622, 62120), (1244, 31060), (1553, 24880), (1555, 24848), (2488, 15530), (3106, 12440), (3110, 12424), (4976, 7765), (6212, 6220)]