81402930

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{823}}^1$

素因数の和:1000

約数の個数: 96

約数和(自身を含む): 243719424

約数和(自身を除く): 162316494

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 157, 210, 314, 315, 471, 630, 785, 823, 942, 1099, 1413, 1570, 1646, 2198, 2355, 2469, 2826, 3297, 4115, 4710, 4938, 5495, 5761, 6594, 7065, 7407, 8230, 9891, 10990, 11522, 12345, 14130, 14814, 16485, 17283, 19782, 24690, 28805, 32970, 34566, 37035, 49455, 51849, 57610, 74070, 86415, 98910, 103698, 129211, 172830, 258422, 259245, 387633, 518490, 646055, 775266, 904477, 1162899, 1292110, 1808954, 1938165, 2325798, 2713431, 3876330, 4522385, 5426862, 5814495, 8140293, 9044770, 11628990, 13567155, 16280586, 27134310, 40701465, 81402930]

約数ペア:

[(1, 81402930), (2, 40701465), (3, 27134310), (5, 16280586), (6, 13567155), (7, 11628990), (9, 9044770), (10, 8140293), (14, 5814495), (15, 5426862), (18, 4522385), (21, 3876330), (30, 2713431), (35, 2325798), (42, 1938165), (45, 1808954), (63, 1292110), (70, 1162899), (90, 904477), (105, 775266), (126, 646055), (157, 518490), (210, 387633), (314, 259245), (315, 258422), (471, 172830), (630, 129211), (785, 103698), (823, 98910), (942, 86415), (1099, 74070), (1413, 57610), (1570, 51849), (1646, 49455), (2198, 37035), (2355, 34566), (2469, 32970), (2826, 28805), (3297, 24690), (4115, 19782), (4710, 17283), (4938, 16485), (5495, 14814), (5761, 14130), (6594, 12345), (7065, 11522), (7407, 10990), (8230, 9891)]