2549968120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{61121}}^1$

素因数の和:61288

約数の個数: 64

約数和(自身を含む): 6601176000

約数和(自身を除く): 4051207880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 149, 280, 298, 596, 745, 1043, 1192, 1490, 2086, 2980, 4172, 5215, 5960, 8344, 10430, 20860, 41720, 61121, 122242, 244484, 305605, 427847, 488968, 611210, 855694, 1222420, 1711388, 2139235, 2444840, 3422776, 4278470, 8556940, 9107029, 17113880, 18214058, 36428116, 45535145, 63749203, 72856232, 91070290, 127498406, 182140580, 254996812, 318746015, 364281160, 509993624, 637492030, 1274984060, 2549968120]

約数ペア:

[(1, 2549968120), (2, 1274984060), (4, 637492030), (5, 509993624), (7, 364281160), (8, 318746015), (10, 254996812), (14, 182140580), (20, 127498406), (28, 91070290), (35, 72856232), (40, 63749203), (56, 45535145), (70, 36428116), (140, 18214058), (149, 17113880), (280, 9107029), (298, 8556940), (596, 4278470), (745, 3422776), (1043, 2444840), (1192, 2139235), (1490, 1711388), (2086, 1222420), (2980, 855694), (4172, 611210), (5215, 488968), (5960, 427847), (8344, 305605), (10430, 244484), (20860, 122242), (41720, 61121)]