208677430

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{977}}^1$

素因数の和:1081

約数の個数: 64

約数和(自身を含む): 425875968

約数和(自身を除く): 217198538

約数列:

[1, 2, 5, 10, 13, 26, 31, 53, 62, 65, 106, 130, 155, 265, 310, 403, 530, 689, 806, 977, 1378, 1643, 1954, 2015, 3286, 3445, 4030, 4885, 6890, 8215, 9770, 12701, 16430, 21359, 25402, 30287, 42718, 51781, 60574, 63505, 103562, 106795, 127010, 151435, 213590, 258905, 302870, 393731, 517810, 673153, 787462, 1346306, 1605211, 1968655, 3210422, 3365765, 3937310, 6731530, 8026055, 16052110, 20867743, 41735486, 104338715, 208677430]

約数ペア:

[(1, 208677430), (2, 104338715), (5, 41735486), (10, 20867743), (13, 16052110), (26, 8026055), (31, 6731530), (53, 3937310), (62, 3365765), (65, 3210422), (106, 1968655), (130, 1605211), (155, 1346306), (265, 787462), (310, 673153), (403, 517810), (530, 393731), (689, 302870), (806, 258905), (977, 213590), (1378, 151435), (1643, 127010), (1954, 106795), (2015, 103562), (3286, 63505), (3445, 60574), (4030, 51781), (4885, 42718), (6890, 30287), (8215, 25402), (9770, 21359), (12701, 16430)]