1721176870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1\times {\mathrm{787}}^1$

素因数の和:1157

約数の個数: 64

約数和(自身を含む): 3585715200

約数和(自身を除く): 1864538330

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 157, 199, 314, 398, 785, 787, 995, 1099, 1393, 1570, 1574, 1990, 2198, 2786, 3935, 5495, 5509, 6965, 7870, 10990, 11018, 13930, 27545, 31243, 55090, 62486, 123559, 156215, 156613, 218701, 247118, 312430, 313226, 437402, 617795, 783065, 864913, 1093505, 1096291, 1235590, 1566130, 1729826, 2187010, 2192582, 4324565, 5481455, 8649130, 10962910, 24588241, 49176482, 122941205, 172117687, 245882410, 344235374, 860588435, 1721176870]

約数ペア:

[(1, 1721176870), (2, 860588435), (5, 344235374), (7, 245882410), (10, 172117687), (14, 122941205), (35, 49176482), (70, 24588241), (157, 10962910), (199, 8649130), (314, 5481455), (398, 4324565), (785, 2192582), (787, 2187010), (995, 1729826), (1099, 1566130), (1393, 1235590), (1570, 1096291), (1574, 1093505), (1990, 864913), (2198, 783065), (2786, 617795), (3935, 437402), (5495, 313226), (5509, 312430), (6965, 247118), (7870, 218701), (10990, 156613), (11018, 156215), (13930, 123559), (27545, 62486), (31243, 55090)]