64961890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{257}}^1$

素因数の和:451

約数の個数: 64

約数和(自身を含む): 140880384

約数和(自身を除く): 75918494

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 70, 115, 157, 161, 230, 257, 314, 322, 514, 785, 805, 1099, 1285, 1570, 1610, 1799, 2198, 2570, 3598, 3611, 5495, 5911, 7222, 8995, 10990, 11822, 17990, 18055, 25277, 29555, 36110, 40349, 41377, 50554, 59110, 80698, 82754, 126385, 201745, 206885, 252770, 282443, 403490, 413770, 564886, 928027, 1412215, 1856054, 2824430, 4640135, 6496189, 9280270, 12992378, 32480945, 64961890]

約数ペア:

[(1, 64961890), (2, 32480945), (5, 12992378), (7, 9280270), (10, 6496189), (14, 4640135), (23, 2824430), (35, 1856054), (46, 1412215), (70, 928027), (115, 564886), (157, 413770), (161, 403490), (230, 282443), (257, 252770), (314, 206885), (322, 201745), (514, 126385), (785, 82754), (805, 80698), (1099, 59110), (1285, 50554), (1570, 41377), (1610, 40349), (1799, 36110), (2198, 29555), (2570, 25277), (3598, 18055), (3611, 17990), (5495, 11822), (5911, 10990), (7222, 8995)]