213730430

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{277}}^1$

素因数の和:465

約数の個数: 64

約数和(自身を含む): 422737920

約数和(自身を除く): 209007490

約数列:

[1, 2, 5, 10, 19, 31, 38, 62, 95, 131, 155, 190, 262, 277, 310, 554, 589, 655, 1178, 1310, 1385, 2489, 2770, 2945, 4061, 4978, 5263, 5890, 8122, 8587, 10526, 12445, 17174, 20305, 24890, 26315, 36287, 40610, 42935, 52630, 72574, 77159, 85870, 154318, 163153, 181435, 326306, 362870, 385795, 689453, 771590, 815765, 1124897, 1378906, 1631530, 2249794, 3447265, 5624485, 6894530, 11248970, 21373043, 42746086, 106865215, 213730430]

約数ペア:

[(1, 213730430), (2, 106865215), (5, 42746086), (10, 21373043), (19, 11248970), (31, 6894530), (38, 5624485), (62, 3447265), (95, 2249794), (131, 1631530), (155, 1378906), (190, 1124897), (262, 815765), (277, 771590), (310, 689453), (554, 385795), (589, 362870), (655, 326306), (1178, 181435), (1310, 163153), (1385, 154318), (2489, 85870), (2770, 77159), (2945, 72574), (4061, 52630), (4978, 42935), (5263, 40610), (5890, 36287), (8122, 26315), (8587, 24890), (10526, 20305), (12445, 17174)]