18847010

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:315

約数の個数: 64

約数和(自身を含む): 42336000

約数和(自身を除く): 23488990

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 139, 149, 182, 278, 298, 455, 695, 745, 910, 973, 1043, 1390, 1490, 1807, 1937, 1946, 2086, 3614, 3874, 4865, 5215, 9035, 9685, 9730, 10430, 12649, 13559, 18070, 19370, 20711, 25298, 27118, 41422, 63245, 67795, 103555, 126490, 135590, 144977, 207110, 269243, 289954, 538486, 724885, 1346215, 1449770, 1884701, 2692430, 3769402, 9423505, 18847010]

約数ペア:

[(1, 18847010), (2, 9423505), (5, 3769402), (7, 2692430), (10, 1884701), (13, 1449770), (14, 1346215), (26, 724885), (35, 538486), (65, 289954), (70, 269243), (91, 207110), (130, 144977), (139, 135590), (149, 126490), (182, 103555), (278, 67795), (298, 63245), (455, 41422), (695, 27118), (745, 25298), (910, 20711), (973, 19370), (1043, 18070), (1390, 13559), (1490, 12649), (1807, 10430), (1937, 9730), (1946, 9685), (2086, 9035), (3614, 5215), (3874, 4865)]