42990920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{8081}}^1$

素因数の和:8118

約数の個数: 64

約数和(自身を含む): 116380800

約数和(自身を除く): 73389880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 2660, 5320, 8081, 16162, 32324, 40405, 56567, 64648, 80810, 113134, 153539, 161620, 226268, 282835, 307078, 323240, 452536, 565670, 614156, 767695, 1074773, 1131340, 1228312, 1535390, 2149546, 2262680, 3070780, 4299092, 5373865, 6141560, 8598184, 10747730, 21495460, 42990920]

約数ペア:

[(1, 42990920), (2, 21495460), (4, 10747730), (5, 8598184), (7, 6141560), (8, 5373865), (10, 4299092), (14, 3070780), (19, 2262680), (20, 2149546), (28, 1535390), (35, 1228312), (38, 1131340), (40, 1074773), (56, 767695), (70, 614156), (76, 565670), (95, 452536), (133, 323240), (140, 307078), (152, 282835), (190, 226268), (266, 161620), (280, 153539), (380, 113134), (532, 80810), (665, 64648), (760, 56567), (1064, 40405), (1330, 32324), (2660, 16162), (5320, 8081)]