16399880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1583}}^1$

素因数の和:1638

約数の個数: 64

約数和(自身を含む): 43338240

約数和(自身を除く): 26938360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 70, 74, 140, 148, 185, 259, 280, 296, 370, 518, 740, 1036, 1295, 1480, 1583, 2072, 2590, 3166, 5180, 6332, 7915, 10360, 11081, 12664, 15830, 22162, 31660, 44324, 55405, 58571, 63320, 88648, 110810, 117142, 221620, 234284, 292855, 409997, 443240, 468568, 585710, 819994, 1171420, 1639988, 2049985, 2342840, 3279976, 4099970, 8199940, 16399880]

約数ペア:

[(1, 16399880), (2, 8199940), (4, 4099970), (5, 3279976), (7, 2342840), (8, 2049985), (10, 1639988), (14, 1171420), (20, 819994), (28, 585710), (35, 468568), (37, 443240), (40, 409997), (56, 292855), (70, 234284), (74, 221620), (140, 117142), (148, 110810), (185, 88648), (259, 63320), (280, 58571), (296, 55405), (370, 44324), (518, 31660), (740, 22162), (1036, 15830), (1295, 12664), (1480, 11081), (1583, 10360), (2072, 7915), (2590, 6332), (3166, 5180)]