19397620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{2383}}^1$

素因数の和:2440

約数の個数: 48

約数和(自身を含む): 45658368

約数和(自身を除く): 26260748

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 148, 185, 220, 370, 407, 740, 814, 1628, 2035, 2383, 4070, 4766, 8140, 9532, 11915, 23830, 26213, 47660, 52426, 88171, 104852, 131065, 176342, 262130, 352684, 440855, 524260, 881710, 969881, 1763420, 1939762, 3879524, 4849405, 9698810, 19397620]

約数ペア:

[(1, 19397620), (2, 9698810), (4, 4849405), (5, 3879524), (10, 1939762), (11, 1763420), (20, 969881), (22, 881710), (37, 524260), (44, 440855), (55, 352684), (74, 262130), (110, 176342), (148, 131065), (185, 104852), (220, 88171), (370, 52426), (407, 47660), (740, 26213), (814, 23830), (1628, 11915), (2035, 9532), (2383, 8140), (4070, 4766)]