81788520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61961}}^1$

素因数の和:61986

約数の個数: 64

約数和(自身を含む): 267675840

約数和(自身を除く): 185887320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 61961, 123922, 185883, 247844, 309805, 371766, 495688, 619610, 681571, 743532, 929415, 1239220, 1363142, 1487064, 1858830, 2044713, 2478440, 2726284, 3407855, 3717660, 4089426, 5452568, 6815710, 7435320, 8178852, 10223565, 13631420, 16357704, 20447130, 27262840, 40894260, 81788520]

約数ペア:

[(1, 81788520), (2, 40894260), (3, 27262840), (4, 20447130), (5, 16357704), (6, 13631420), (8, 10223565), (10, 8178852), (11, 7435320), (12, 6815710), (15, 5452568), (20, 4089426), (22, 3717660), (24, 3407855), (30, 2726284), (33, 2478440), (40, 2044713), (44, 1858830), (55, 1487064), (60, 1363142), (66, 1239220), (88, 929415), (110, 743532), (120, 681571), (132, 619610), (165, 495688), (220, 371766), (264, 309805), (330, 247844), (440, 185883), (660, 123922), (1320, 61961)]