2777777860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{971251}}^1$

素因数の和:971284

約数の個数: 48

約数和(自身を含む): 6853154112

約数和(自身を除く): 4075376252

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 971251, 1942502, 3885004, 4856255, 9712510, 10683761, 12626263, 19425020, 21367522, 25252526, 42735044, 50505052, 53418805, 63131315, 106837610, 126262630, 138888893, 213675220, 252525260, 277777786, 555555572, 694444465, 1388888930, 2777777860]

約数ペア:

[(1, 2777777860), (2, 1388888930), (4, 694444465), (5, 555555572), (10, 277777786), (11, 252525260), (13, 213675220), (20, 138888893), (22, 126262630), (26, 106837610), (44, 63131315), (52, 53418805), (55, 50505052), (65, 42735044), (110, 25252526), (130, 21367522), (143, 19425020), (220, 12626263), (260, 10683761), (286, 9712510), (572, 4856255), (715, 3885004), (1430, 1942502), (2860, 971251)]