19063880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1171}}^1$

素因数の和:1230

約数の個数: 64

約数和(自身を含む): 48098880

約数和(自身を除く): 29035000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 37, 40, 44, 55, 74, 88, 110, 148, 185, 220, 296, 370, 407, 440, 740, 814, 1171, 1480, 1628, 2035, 2342, 3256, 4070, 4684, 5855, 8140, 9368, 11710, 12881, 16280, 23420, 25762, 43327, 46840, 51524, 64405, 86654, 103048, 128810, 173308, 216635, 257620, 346616, 433270, 476597, 515240, 866540, 953194, 1733080, 1906388, 2382985, 3812776, 4765970, 9531940, 19063880]

約数ペア:

[(1, 19063880), (2, 9531940), (4, 4765970), (5, 3812776), (8, 2382985), (10, 1906388), (11, 1733080), (20, 953194), (22, 866540), (37, 515240), (40, 476597), (44, 433270), (55, 346616), (74, 257620), (88, 216635), (110, 173308), (148, 128810), (185, 103048), (220, 86654), (296, 64405), (370, 51524), (407, 46840), (440, 43327), (740, 25762), (814, 23420), (1171, 16280), (1480, 12881), (1628, 11710), (2035, 9368), (2342, 8140), (3256, 5855), (4070, 4684)]