287885720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{5189}}^1$

素因数の和:5292

約数の個数: 64

約数和(自身を含む): 691308000

約数和(自身を除く): 403422280

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 73, 76, 95, 146, 152, 190, 292, 365, 380, 584, 730, 760, 1387, 1460, 2774, 2920, 5189, 5548, 6935, 10378, 11096, 13870, 20756, 25945, 27740, 41512, 51890, 55480, 98591, 103780, 197182, 207560, 378797, 394364, 492955, 757594, 788728, 985910, 1515188, 1893985, 1971820, 3030376, 3787970, 3943640, 7197143, 7575940, 14394286, 15151880, 28788572, 35985715, 57577144, 71971430, 143942860, 287885720]

約数ペア:

[(1, 287885720), (2, 143942860), (4, 71971430), (5, 57577144), (8, 35985715), (10, 28788572), (19, 15151880), (20, 14394286), (38, 7575940), (40, 7197143), (73, 3943640), (76, 3787970), (95, 3030376), (146, 1971820), (152, 1893985), (190, 1515188), (292, 985910), (365, 788728), (380, 757594), (584, 492955), (730, 394364), (760, 378797), (1387, 207560), (1460, 197182), (2774, 103780), (2920, 98591), (5189, 55480), (5548, 51890), (6935, 41512), (10378, 27740), (11096, 25945), (13870, 20756)]