16311440

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{4973}}^1$

素因数の和:5027

約数の個数: 40

約数和(自身を含む): 38856888

約数和(自身を除く): 22545448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 4973, 9946, 19892, 24865, 39784, 49730, 79568, 99460, 198920, 203893, 397840, 407786, 815572, 1019465, 1631144, 2038930, 3262288, 4077860, 8155720, 16311440]

約数ペア:

[(1, 16311440), (2, 8155720), (4, 4077860), (5, 3262288), (8, 2038930), (10, 1631144), (16, 1019465), (20, 815572), (40, 407786), (41, 397840), (80, 203893), (82, 198920), (164, 99460), (205, 79568), (328, 49730), (410, 39784), (656, 24865), (820, 19892), (1640, 9946), (3280, 4973)]